612 results found

1. Theme

   I understand that this isn’t a priority right now, but in the long term it would be great to let Lumo have the same themes that are offered in the other Proton products (Mail, Drive..). (Lumo with Ebony would be beautiful 😍​)

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2. The ability to set a permanent but editable preamble that is always considered by Lumo+ at the start and during each chat.

   I have recently moved from ChatGBT over to Lumo+ and I noticed some differences. Lumo+ under it's current configuration isn't nearly as accurate as Chat. Yes, Chat can get you up the wrong tree at times, but not as much as Lumo. One thing that I think that helped with Chat is the the ability to create a general header for how I wanted Chat to operate which included instructions about accuracy, depth, reply style, and whether to resort to the web to get latest information about softwre updates on things like Home Assistant and Raspberry Pi. With Chat I could have a standing request to go deeper and consider more references before making an answer giving links to where it got it's information.
   I made the mistake of asking Lumo how to send feedback and it got it all wrong. I really don't want an AI that just makes things up.

   I have recently moved from ChatGBT over to Lumo+ and I noticed some differences. Lumo+ under it's current configuration isn't nearly as accurate as Chat. Yes, Chat can get you up the wrong tree at times, but not as much as Lumo. One thing that I think that helped with Chat is the the ability to create a general header for how I wanted Chat to operate which included instructions about accuracy, depth, reply style, and whether to resort to the web to get latest information about softwre updates on things like Home Assistant and Raspberry Pi. With Chat I… more

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3. Rich text in the Calendar

   It would be great if the "Description" field in the Calendar entries would be rich text, like Google Calendar offers. That way, we can copy text and paste with formats like bold, underline, etc. etc.

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4. I want to be able to use Lumo using the latest Firefox Extended Support Release (ESR) version

   I want to be able to use Lumo using the latest Firefox Extended Support Release (ESR) version, so that I can continue to use Lumo on my company notebook that does not support other browser brands.

   Since yesterday (1 Nov 2025) I receive a message that says "Unsupported browser". There has been no communications to inform us that the Firefox Extended Support Release (ESR) version will no longer be supported. Our browser version is fully up-to-date, at the time of writing it is 115.29.0 Firefox ESR October 14, 2025 and no newer version of Firefox ESR has been released at this point.

   Therefore we urgently request this browser to be supported, in conformity with what has also been stated in the following page, where it is explicitly mentioned that Firefox is supported and even recommended:

   https://proton.me/support/recommended-browsers

   Please act with urgency! Thank you.

   I want to be able to use Lumo using the latest Firefox Extended Support Release (ESR) version, so that I can continue to use Lumo on my company notebook that does not support other browser brands.

   Since yesterday (1 Nov 2025) I receive a message that says "Unsupported browser". There has been no communications to inform us that the Firefox Extended Support Release (ESR) version will no longer be supported. Our browser version is fully up-to-date, at the time of writing it is 115.29.0 Firefox ESR October 14, 2025 and no newer version of Firefox ESR has been released at… more

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5. Custom shortcut/alias/abbreviation for a frequently used queries/prompts

   It happens that your Lumo question is long and used repeatedly while minor part of the question is variable. For example:
   Translate "string here" to spanish.

   Instead of needing to always write this sentence, i would like to setup custom shortcut, for example:
   t2sp paste here the phrase i would like to translate to spanish

   There would have to be some page, where i can manage all shortcuts (search/filter, sort). And it should not require learning/remembering any complicated syntax. Intuitive, layman friendly.

   ---

   Similar feature request: https://protonmail.uservoice.com/forums/932842-lumo/suggestions/50578022-lumo-system-prompt

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6. Lumo system prompt

   When I ask Lumo for help, I have to always give instructions how it should respond, otherwise it may generate an undesired huge response for rather simple questions. Having an ability to predefine a system prompt to influence this behaviour is in my opinion a required feature. This feature could be also expanded to have several system prompts to choose from at the beginning of a conversation.

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7. Security

   Changes to all existing idieas replace with a save and more secure one

   3 votes

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8. Last Day of Month Events

   Recurring events on calendar - ability to choose the last day of the month. I tried choosing the 31st of the month, but on days that don't have 31 days, the event just disappeared, rather than adjusting to the last day.

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9. Please have a text to voice function at the end of each message.

   Please have a text to voice function at the end of each message. Every other AI incorporates this and it reads the text back to you. It helps people with disabilities or if you are driving and trying to pay attention to the road. This way you can voice to text to Lumo and get text to voice back. Thanks!

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10. Custom event time zones in Proton Calendar

    I have been traveling more, and I would like to book work and personal events in their respective time zones. I have my current primary time zone as Central U.S. (Chicago), but a secondary time zone doesn't really make sense for short trips to other time zones. An example is I booked a museum tour at a specified time in London, UK next year. I would like to add it with the 12:00 at London 0 GMT. And then let's say I book a dinner reservation in Washington, DC for my trip this week. I could make it 6:00 pm Eastern U.S. and not have to think about making it 5:00 pm Central U.S. My ideal suggestion would be a quick search field that has pre-populated with cities and countries and their time zones pulled from Wikipedia, then also the GMT system for when a backup is necessary.

    I have been traveling more, and I would like to book work and personal events in their respective time zones. I have my current primary time zone as Central U.S. (Chicago), but a secondary time zone doesn't really make sense for short trips to other time zones. An example is I booked a museum tour at a specified time in London, UK next year. I would like to add it with the 12:00 at London 0 GMT. And then let's say I book a dinner reservation in Washington, DC for my trip this week. I could make it 6:00 pm… more

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11. Subthread creation from highlighted response, pinning, pruning, editing, model changing.

    A fractal of subthreads started from a response.

    Tree navigation, Pruning, and editing.

    Subthread PinningG

    I understand this is complex,
    I'de rather have it slow and capable, instead of not at all.

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12. **Feature Request: Research Integration & Source Transparency**

    Feature Request: Research Integration & Source Transparency

    As an engineering professional using Lumo for medical/pharmacological research, I'm requesting:

    1. Research-database integration for web search: Preprint servers (medRxiv, bioRxiv), clinical trial registries (NCT database), and PubMed with full-text retrieval—not just consumer health pages. Current gaps hurt real-world workflows (e.g., GLP-1 titration research misses >1 year of data).

    2. Visible source trail: Inline citations linking claims to specific retrieved passages so technical users can audit responses faster.

    3. Fresher model training: April 2024 cutoff creates systematic lag in fast-moving domains like pharmacology and longevity science. Request more frequent retraining cadence.

    4. Domain-aware routing: Specialized models for medical/scientific queries would improve answer quality for research-heavy users.

    These changes would move Lumo from useful to reliably primary for deep research workflows. Happy to provide examples or beta test.

    Feature Request: Research Integration & Source Transparency

    As an engineering professional using Lumo for medical/pharmacological research, I'm requesting:

    1. Research-database integration for web search: Preprint servers (medRxiv, bioRxiv), clinical trial registries (NCT database), and PubMed with full-text retrieval—not just consumer health pages. Current gaps hurt real-world workflows (e.g., GLP-1 titration research misses >1 year of data).

    2. Visible source trail: Inline citations linking claims to specific retrieved passages so technical users can audit responses faster.

    3. Fresher model training: April 2024 cutoff creates systematic lag in fast-moving domains like pharmacology and longevity science. Request more frequent retraining cadence.

    4. Domain-aware… more

    2 votes

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13. Double click to edit

    Coming from other calendar apps, I find myself always double clicking the event to edit it, this would be a super nice little feature that saves time and clicks :)

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14. Think and respond in the user's English variant, with full regional settings for Lumo (units, currency, time zones + more)

    Lumo has language selection, but no regional settings governing how it formats measurements, currency, dates and times in its responses, or how it reasons within them. For users outside the US this is constant friction. Critically, these settings should shape how Lumo thinks, not just how it writes: drafting a document in British English should mean composing it in British English from the first word, rather than generating American English and converting the spelling afterwards.

    Requested options, ideally as one Region preference with independent sub-settings:

    1. English variants with full grammar, punctuation, vocabulary and idiom rules (en-GB, en-AU, en-NZ, en-IE, en-CA, en-IN, en-ZA, en-US), rather than one undifferentiated English that defaults to American.

    2. A separately selectable spelling and proofreading variant, independent of interface language.

    3. A temporal awareness toggle (choose whether Lumo knows the current date and time, for privacy), with a user-set default time zone including fractional offsets (UTC+5:30, +5:45, +12:45), correct daylight saving rules per region, a 24-hour or 12-hour clock, and unambiguous offset rendering for cross-zone times.

    4. Measurement units: user-selectable metric or imperial, governing both how Lumo expresses quantities and how it interprets input.

    5. Temperature scale (Celsius or Fahrenheit) as an independent setting.

    6. Default display currency, so financial figures do not assume USD.

    7. Date format independent of language variant (DD/MM/YYYY, MM/DD/YYYY, ISO YYYY-MM-DD, YYYY/MM/DD, D.M.YYYY), plus alternative calendar systems (Hijri, Hebrew, Japanese era, Thai Buddhist, Persian, Indian Saka, Chinese lunisolar among others). This prevents consequential misreadings such as 09/01/2026, two entirely different dates eight months apart depending on the reader's convention.

    8. Calendar week-start day (Monday, Sunday or Saturday, per the user's convention), with ISO week numbering as an option.

    9. Holiday awareness: regional terminology (public, bank, federal, statutory holidays), sub-national variation, correctly named Lunar New Year variants (Spring Festival, Seollal, Tet, Losar, Tsagaan Sar, Imlek), other East and Southeast Asian observances, religious observances across all major traditions (with an option to surface global ones), school holidays and academic terms per jurisdiction (academic year boundaries differ between hemispheres), and moon phases and lunisolar calendar display. Multi-jurisdiction families and remote students should be able to subscribe to several calendars at once.

    10. Financial year conventions: calendar year, 1 July to 30 June (Australia, NZ), 1 April to 31 March (India, Japan), 6 April to 5 April (UK personal tax), 1 October to 30 September (US federal), and a custom start date for anywhere else, so financial year reasoning stops assuming the calendar year.

    11. Number formatting: regional decimal and thousands separators (1,234.56 / 1.234,56 / 1 234,56 / 1'234.56), Indian lakh and crore digit grouping, Arabic-Indic numerals, and East Asian myriad grouping.

    12. Paper size conventions: ISO A and B series, US Letter and Legal, JIS B and traditional Japanese sizes, ANSI, and Latin American formats.

    13. Region-appropriate cultural references in examples (pricing, quantities, institutions) rather than US defaults.

    14. Academic citation styles (Harvard, APA, MLA, Chicago, Oxford) as a selectable preference.

    15. Toggles controlling whether each setting also applies in Ghost Mode chats, so ephemerality does not cost users their regional settings.

    Ideally these would be managed at Proton Account level and available across all applicable Proton apps, applied either globally or per app, configured once and synced everywhere.

    The examples above are illustrative, not exhaustive: the underlying request is that these options cover the conventions in use by everyone in every country globally, with custom options catching the remainder. No Proton user should find their regional reality unrepresentable.

    Competitor landscape: Apple's Language and Region settings already allow independent configuration of these conventions at OS level, inherited by Siri and Apple Intelligence. No major AI assistant (ChatGPT, Gemini, Claude, Copilot) currently offers structured regional settings natively; users resort to character-limited custom instructions that are inconsistently honoured. Proton would be the first AI assistant to ship them.

    Full detail for every item, with regional examples, is posted in the comments below. Please vote if you would like to see these features added :)

    Lumo has language selection, but no regional settings governing how it formats measurements, currency, dates and times in its responses, or how it reasons within them. For users outside the US this is constant friction. Critically, these settings should shape how Lumo thinks, not just how it writes: drafting a document in British English should mean composing it in British English from the first word, rather than generating American English and converting the spelling afterwards.

    Requested options, ideally as one Region preference with independent sub-settings:

    1. English variants with full grammar, punctuation, vocabulary and idiom rules (en-GB, en-AU, en-NZ, en-IE, en-CA,… more

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15. Lumo search/conversation widget

    I would like to have a Lumo search/conversation bar widget (like Google search widget) in order to access Lumo faster from home screen.

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16. Transparency Gap in Lumo — Model Disclosure Consistency Issue

    Dear Proton Team,

    I'm writing as a supporter of Proton's privacy mission who deeply appreciates what you've built with Lumo. The zero-access encryption architecture, European datacenter infrastructure, and commitment to keeping conversations off training pipelines are exactly what the AI privacy space needs. However, I've identified a significant inconsistency in transparency that undermines this otherwise exceptional privacy-first positioning.

    THE CORE ISSUE

    Currently, Proton markets Lumo as using "open-source language models" without disclosing which specific base models or model families power the service. This creates a transparency gap between your stated values and your actual disclosure practices.

    WHAT IS CURRENTLY DISCLOSED:
    - "Open-source language models" (vague category)
    - European datacenters
    - Zero-access encryption
    - No logs, no training on user data

    WHAT IS NOT DISCLOSED:
    - Base model name/family (e.g., Llama 3.2, Mistral Large, etc.)
    - License type (Apache 2.0, Llama Community License, etc.)
    - Fine-tuning methodology description
    - Version/commit references for reproducibility

    INDUSTRY BENCHMARK COMPARISON

    Company: DuckDuckGo (Duck.ai)
    Disclosure: OpenAI GPT-5.4, Anthropic Claude 4.5 Haiku, Meta Llama 3.3, Mistral Small 4 — all publicly named

    Company: Mullvad VPN
    Disclosure: Full app source code on GitHub (GPLv3), WireGuard/OpenVPN protocols, annual transparency reports, published police raid documentation

    Company: Quad9 DNS
    Disclosure: All 15+ threat-intelligence partners listed by name, quarterly transparency reports, infrastructure maps, human rights impact statements

    Company: Proton Lumo
    Disclosure: "Open-source models" — no specific names, licenses, or technical lineage

    The question is straightforward: If transparency is a core differentiator, why does it stop at the encryption layer?

    WHY THIS MATTERS FOR TRUST

    Security Researchers: Can they audit the actual ML pipeline for vulnerabilities or data leakage risks?
    Enterprise Buyers: What license governs derivative use of outputs? Are there compliance implications?
    Technical Users: Is this fine-tuned Llama vs. Mistral vs. Gemma? These have vastly different capabilities.
    Privacy Advocates: Does the model's original training data introduce indirect data exposure risks?
    Community Contributors: How can developers build extensions or integrations without knowing the foundation?

    Being "open about being open-source" and being actually specific are two different things. The latter builds verifiable trust; the former relies on blind faith.

    LESSONS FROM PRIVACY-FOCUSED PEERS

    Mullvad's Approach:
    "All of Mullvad's apps are open source. This means anyone can inspect the code, verify what it does, and ensure there are no backdoors or vulnerabilities."
    They don't just claim security—they make it auditable.

    Quad9's Approach:
    "Quad9 integrates threat intelligence from multiple industry leaders... We publish quarterly transparency reports showing zero data requests received since 2017."
    They don't just claim privacy—they document proof points.

    Proton's Opportunity:
    You could match this standard with a simple disclosure like:
    "Lumo's core capabilities derive from fine-tuned versions of [Model Family A] and [Model Family B], with proprietary privacy-enhancing modifications."

    This doesn't reveal trade secrets or compromise security—it just satisfies legitimate user expectations aligned with your transparency brand promise.

    SPECIFIC RECOMMENDATIONS

    1. Publish a blog post listing base model names (Low effort, High trust impact)
    2. Add a model card to Lumo documentation (Low effort, High trust impact)
    3. Publish fine-tuning methodology overview (Medium effort, High trust impact)
    4. Include model lineage in security model docs (Medium effort, High trust impact)
    5. Release evaluation benchmarks for comparison (Medium effort, Very High trust impact)

    Even starting with just naming the base model families would address 80% of the transparency gap while preserving operational flexibility.

    ADDRESSING POTENTIAL CONCERNS

    Concern: Competitors will copy our fine-tuning
    Rebuttal: Naming base models doesn't reveal fine-tuning parameters or training data

    Concern: We'll lock ourselves into specific versions
    Rebuttal: You can disclose "Llama 3.2 family" or "Mistral Large class" without binding to exact versions

    Concern: Security through obscurity
    Rebuttal: Security-by-design is more trustworthy than security-by-secret. Auditable systems build trust.

    Concern: Marketing differentiation
    Rebuttal: True capability differentiation comes from performance + privacy, not model obscurity.

    None of these justify zero disclosure about base models when transparency is a core marketing pillar.

    BOTTOM LINE REQUEST

    If Proton truly believes in transparency as a foundational value (not just a marketing tagline), please consider:

    1. Disclosing base model families used in Lumo
    2. Including licensing information for those base models
    3. Publishing a high-level architecture diagram showing how models integrate with encryption
    4. Adding transparency reports for model updates and incidents

    This would align Lumo's disclosure standards with:
    - Your own encryption/security documentation (which is excellent)
    - Peer privacy companies like Mullvad and Quad9
    - User expectations for a "transparent privacy-first AI"

    THANK YOU

    I understand product teams balance competing priorities—security, competitiveness, development velocity, and transparency. But for companies whose core brand promise is privacy and transparency, consistency across all dimensions matters. Every undisclosed detail erodes the cumulative trust earned by every disclosed promise.

    Thank you for reading this feedback and for building tools that give users real control over their digital lives. I look forward to seeing Lumo continue to set industry standards.

    Best regards,
    Security Researcher

    Dear Proton Team,

    I'm writing as a supporter of Proton's privacy mission who deeply appreciates what you've built with Lumo. The zero-access encryption architecture, European datacenter infrastructure, and commitment to keeping conversations off training pipelines are exactly what the AI privacy space needs. However, I've identified a significant inconsistency in transparency that undermines this otherwise exceptional privacy-first positioning.

    THE CORE ISSUE

    Currently, Proton markets Lumo as using "open-source language models" without disclosing which specific base models or model families power the service. This creates a transparency gap between your stated values and your actual disclosure practices.

    WHAT IS CURRENTLY DISCLOSED:… more

    2 votes

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17. Farb-Funktion gratis zur Verfügung stellen bitte

    Hallo,
    wäre es möglich die Farbfunktion von Kalenereinträgen kostenlos zur Verfügung zu stellen, bitte? Es hört sich etwas absurd an, wenn ich mit Leuten über Alternativen zu Google Produkten (u.a. Kalender) rede und ich dann erklären muss, dass man für das Einfärben von Kalendereinträgen 5€ im Monat zahlen muss. Im google Kalender geht das einfach und gratis. Es ist somit halt echt schwer mit dem begrenzten Funktionsumfang von Proton Kalender Leute zum Umsteigen zu bewegen...
    Deshalb meine Bitte: Stellt die Farb-Funktion von Kalendereinträgen bitte gratis zur Verfügung, vielen Dank.

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18. Real Life Meca Lumo

    I found out how may of the small robots, with raspberry (<- mini pc) and such exist.

    It supports many of the other ais. And i can't help but want a cat like this:)))

    After all... can you Imagen if, despite having an ai, as a mini robot, seeing and talking and more with you, it's still 100% privacy? (i am not taking in account crimes and similar as per limitation of what 100% privacy means).

    For Proton: i don't know how they work but if the little robot can be compatible with Lumo, then we can take it from there, like maybe directly connected to our pc or something

    (Also for proton: ensure you do add policies against the use of such mini Lumos since i am sure people are already doing ai robot vs ai robots or some other vs stuff)

    I found out how may of the small robots, with raspberry (<- mini pc) and such exist.

    It supports many of the other ais. And i can't help but want a cat like this:)))

    After all... can you Imagen if, despite having an ai, as a mini robot, seeing and talking and more with you, it's still 100% privacy? (i am not taking in account crimes and similar as per limitation of what 100% privacy means).

    For Proton: i don't know how they work but if the little robot can be compatible with Lumo, then we can take it from… more

    2 votes

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19. Lumo iOS Search function

    Sometimes during a long session, you want to get back to particular answers that you need to keep on working right now the only way to do this is to either scroll through the whole session manually or copy paste, the answer to a new document which is somewhat cumbersome

    2 votes

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20. Responsive chat width when sidebars are collapsed

    🧩 Problem
    When I collapse the left sidebar and the files panel, the chat area stays narrow.
    Since the chat content isn't responsive, the conversation remains constrained to a
    fixed (narrow) width, wasting the freed screen space.

    This makes it harder to work with:
    - 📊 Charts and tables generated in conversations
    - 📝 Code blocks / longer lines of text
    - 🖼️ Wide images and generated content

    💡 Proposed Solution
    Make the chat container responsive to available width, so when panels
    are collapsed, the conversation stretches to use the reclaimed space.

    Options to consider:
    1. Chat width dynamically fills the viewport minus open sidebars.
    2. A toggle (e.g. "Wide mode" / "Compact mode") to force full-width reading.
    3. A max-width cap for readability, adjustable in Settings.

    ✅ Expected Benefit
    - Better readability for wide content (charts, tables, long lines of code)
    - More efficient use of screen real estate on wide monitors
    - More consistent experience when toggling sidebar visibility

    🖥️ Environment
    - Platform: Web (also noticed on desktop resolutions 1080p+)
    - Reproducible: collapse both side panels → chat width stays small

    🧩 Problem
    When I collapse the left sidebar and the files panel, the chat area stays narrow.
    Since the chat content isn't responsive, the conversation remains constrained to a
    fixed (narrow) width, wasting the freed screen space.

    This makes it harder to work with:
    - 📊 Charts and tables generated in conversations
    - 📝 Code blocks / longer lines of text
    - 🖼️ Wide images and generated content

    💡 Proposed Solution
    Make the chat container responsive to available width, so when panels
    are collapsed, the conversation stretches to use the reclaimed space.

    Options to consider:
    1. Chat width dynamically… more

    2 votes

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