Issues

• [Vulnerability] Daily Quota Bypass via Session Cookie Reset in Lumo AI Guest Mode

  ProtonMail/WebClients#541 · Filter by author GoogTech opened on Sep 11, 2026
  1

• Ignore IME keydown events in the Rooster iframe bridge

  ProtonMail/WebClients#539 · Filter by author squarepots opened on Sep 7, 2026

• Avoid refocusing an already-focused Rooster editor on click

  ProtonMail/WebClients#537 · Filter by author squarepots opened on Sep 7, 2026

• Dispose Rooster editor initialized after unmount

  ProtonMail/WebClients#535 · Filter by author squarepots opened on Sep 7, 2026

• Proton serves Official App-specific Edition to Third Party Apps

  ProtonMail/WebClients#532 · Filter by author Akkitto opened on Sep 2, 2026
  1

• Proton Mail desktop crashes at startup: EXCEPTION_ACCESS_VIOLATION at Proton Mail.exe+0x2c730ca on Windows 11 24H2

  ProtonMail/WebClients#528 · Filter by author xyz-rainbow opened on Aug 7, 2026
  4

• Dark theme: what should the message container do when the email itself has a dark background?

  ProtonMail/WebClients#526 · Filter by author HoodieYlya13 opened on Aug 4, 2026

• [Security] Lumo HtmlPreviewPanel message listener missing origin/source check - UI spoofing

  ProtonMail/WebClients#524 · Filter by author Ra-inskyy opened on Aug 1, 2026

• [Security] SSO token + UID posted to window.opener without targetOrigin (session takeover)

  ProtonMail/WebClients#522 · Filter by author Ra-inskyy opened on Aug 1, 2026

• [Security] CSS url() in <style> tags survives email sanitization - open tracking + IP leak bypassing image proxy

  ProtonMail/WebClients#523 · Filter by author Ra-inskyy opened on Aug 1, 2026

• Rendering and Layout Issues with Forwarded Emails (e.g., from GMX), Am I the only one?

  ProtonMail/WebClients#521 · Filter by author Jakob-Schn opened on Jul 19, 2026

• Question about Spanish localization (es-ES vs es-419)

  ProtonMail/WebClients#519 · Filter by author Munetios opened on Jul 19, 2026

• Autofill does not detect Authentik login fields (inputs inside shadow DOM)

  ProtonMail/WebClients#516 · Filter by author arclabch opened on Jun 22, 2026

• [Linux] GPU process crashes on startup (exit_code=11) with AMD + Mesa on Debian 12 — window never shown, --disable-gpu as workaround

  ProtonMail/WebClients#514 · Filter by author ghostintheshell-192 opened on Jun 13, 2026

• Shared calendar ICS export: line folding sometimes consumes a content space (RFC 5545), varying between requests

  ProtonMail/WebClients#513 · Filter by author ghxm opened on Jun 12, 2026

• Is local installation supported for external contributors?

  ProtonMail/WebClients#510 · Filter by author zecka opened on Jun 2, 2026
  4

• Extensibility of the docs-editor collaboration layer for non-linear document models

  ProtonMail/WebClients#508 · Filter by author kelian-4 opened on May 29, 2026

• Feature - display more labels on emails (Improperly closed issues.)

  ProtonMail/WebClients#507 · Filter by author RheaAyase opened on May 27, 2026
  2

• [Enhancement] Offer IMAP, without Bridge.

  ProtonMail/WebClients#506 · Filter by author beedell-roke opened on May 24, 2026

• Responsive for linux apps (to make them usable on Linux Mobile OS)

  ProtonMail/WebClients#505 · Filter by author Huluti opened on May 17, 2026
  2

• Dissynchronicity About F-droid

  ProtonMail/WebClients#504 · Filter by author HerbalDratini opened on May 9, 2026

• [Bug] 5.0.113.4 β utilises dynamic hotlinking for imgs which do not support it, thereby rendering them 404.

  ProtonMail/WebClients#502 · Filter by author beedell-roke opened on May 7, 2026

• Lower paywall for local inference

  ProtonMail/WebClients#499 · Filter by author codingjoe opened on Apr 30, 2026

• version.json Stable vs EarlyAccess

  ProtonMail/WebClients#494 · Filter by author cvlc12 opened on Apr 26, 2026

• odf-kit — JavaScript/TypeScript library for ODT export from Lexical editor state

  ProtonMail/WebClients#488 · Filter by author GitHubNewbie0 opened on Apr 17, 2026