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Hermes Browser Extension version history - 7 versions

Hermes Browser Extension by Jon Komet

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Hermes Browser Extension version history - 7 versions
  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 0.3.4.2

    Released 3 Oct 2026 - 13.14 MB
    Works with firefox 142.0 and later
    Nous Light is now a white theme with Nous Blue accents, and user messages plus "What Hermes saw" stay readable in every light theme.
    • The composer status row (DOM preview and Attached tab) collapses behind a slim handle on the composer border. The choice is remembered, and the DOM preview always reopens closed.
    • Hovering the DOM chip explains what DOM means instead of repeating the page you are already on.
    • The start screen is white with a blue logo on Nous Light, and the chat intro banner matches the Settings banner.

    Firefox remains chat and context only. Real-tab attach (Hermes Control) is Chromium-only and is not included in this package.

    Source code released under MIT Licence

    Download Firefox and get the extension
    Download file
  • Older versions

    Version 0.3.4.1

    Released 3 Oct 2026 - 13.14 MB
    Works with firefox 142.0 and later
    Rooms feel like a real conversation now, with distinct bots, live presence and per-room model choices. Messages gain Copy, Edit and Restore checkpoint, Browser Control gets a proper scope dialog, and sent files keep their originals.

    ROOMS AND MODELS
    - New rooms synchronize their members at creation and read the result back. Badges report Synced, Not synced or Sync failed, with retry.
    - Room replies carry a bot avatar, coloured name, accent bar and subtle tint; pick avatars from the bundled gallery.
    - Live presence shows queued, working, typing, tool-use, done, pass and failure states.
    - Mention selected members, or press Reply to mention a bot's author.
    - Change or reset one member's model in a room without touching its profile default. The model and provider are shown, confirmation is required, and an unverified pin blocks that member's turn.
    - Model-change, pass and failure notices persist when a room is reopened.

    MESSAGES
    - Hover, focus or click a message for its action rail: Copy, plus Edit (reruns from that point with refreshed browser context) and Restore checkpoint (confirms first) on supported side-panel user turns.
    - Age-aware message times, day dividers, message grouping, and theme-aware bubbles.

    BROWSER CONTROL, FILES AND LIMITS
    - Browser Control opens from the composer. Choose This tab, Selected tabs or Task set, with hover and focus explanations. A task set contains only tabs you choose.
    - Original files are kept locally as Open/Download cards. A supported gateway must acknowledge an upload before a turn references it; otherwise your draft is preserved.
    - Large pastes get clear retention and excerpt warnings.
    - Context receipts show delivered tabs against the full selection (for example 12 of 20).
    - Signature typography falls back to bundled Hermes faces, with a note in Settings.

    RELIABILITY
    - Gateway failures explain the real error and keep your draft when delivery is uncertain.
    - After a Hermes update, an old-code gateway is named plainly, with a confirmed Restart Hermes action and live progress.
    - Steering messages show your words with a steer label, including after reload.
    - Windows setup respects HERMES_HOME (thanks @chrisworksai).
    - Context windows for new models resolve from synchronized Hermes Agent rules.
    - Local signing keys are ignored by source control (thanks @xxkingstuggle).
    - 21 locale catalogs cover all new strings.

    Full changes: https://github.com/abundantbeing/hermes-browser-extension/blob/main/CHANGELOG.md

    Source code released under MIT Licence

    Download file
  • Version 0.3.4

    Released 3 Oct 2026 - 13.13 MB
    Works with firefox 142.0 and later
    Rooms feel like a real conversation now, with distinct bots, live presence and per-room model choices. Messages gain Copy, Edit and Restore checkpoint, Browser Control gets a proper scope dialog, and sent files keep their originals.

    ROOMS AND MODELS
    - New rooms synchronize their members at creation and read the result back. Badges report Synced, Not synced or Sync failed, with retry.
    - Room replies carry a bot avatar, coloured name, accent bar and subtle tint; pick avatars from the bundled gallery.
    - Live presence shows queued, working, typing, tool-use, done, pass and failure states.
    - Mention selected members, or press Reply to mention a bot's author.
    - Change or reset one member's model in a room without touching its profile default. The model and provider are shown, confirmation is required, and an unverified pin blocks that member's turn.
    - Model-change, pass and failure notices persist when a room is reopened.

    MESSAGES
    - Hover, focus or click a message for its action rail: Copy, plus Edit (reruns from that point with refreshed browser context) and Restore checkpoint (confirms first) on supported side-panel user turns.
    - Age-aware message times, day dividers, message grouping, and theme-aware bubbles.

    BROWSER CONTROL, FILES AND LIMITS
    - Browser Control opens from the composer. Choose This tab, Selected tabs or Task set, with hover and focus explanations. A task set contains only tabs you choose.
    - Original files are kept locally as Open/Download cards. A supported gateway must acknowledge an upload before a turn references it; otherwise your draft is preserved.
    - Large pastes get clear retention and excerpt warnings.
    - Context receipts show delivered tabs against the full selection (for example 12 of 20).
    - Signature typography falls back to bundled Hermes faces, with a note in Settings.

    RELIABILITY
    - Gateway failures explain the real error and keep your draft when delivery is uncertain.
    - After a Hermes update, an old-code gateway is named plainly, with a confirmed Restart Hermes action and live progress.
    - Steering messages show your words with a steer label, including after reload.
    - Windows setup respects HERMES_HOME (thanks @chrisworksai).
    - Context windows for new models resolve from synchronized Hermes Agent rules.
    - Local signing keys are ignored by source control (thanks @xxkingstuggle).
    - 21 locale catalogs cover all new strings.

    Full changes: https://github.com/abundantbeing/hermes-browser-extension/blob/main/CHANGELOG.md

    Source code released under MIT Licence

    Download file
  • Version 0.3.2

    Released 7 Sep 2026 - 8.09 MB
    Works with firefox 142.0 and later
    Version 0.3.2 adds Hermes Bot Mode, live group chats, AI tab triage, truthful page-only context, and faster local Desktop discovery. This package also includes connection, profile, and session fixes landed after the initial 0.3.2 drop.

    Added
    - Hermes Bot Mode: dedicated multi-agent roster with profile switching, lazy model loading, and instant agent opening.
    - Live Group Chat and Threads: multi-agent room projections, collaborative thread tracking, and synchronized conversation histories without blank chat states.
    - AI Tab Triage (/sort-tabs, /organize-tabs, /clean-tabs, /categorize-tabs, /triage-tabs): analyzes open tabs, clusters them (Projects, Research, Social, Productivity, Stale/Duplicates), finds redundant URLs, and builds a removal checklist.
    - Full-width Page only action, plus side-by-side Include all tabs and AI Triage Tabs, with hover descriptions.
    - Multi-keyword tab search across titles and URLs, with a match-count badge. Enter toggles a match, Escape clears.

    Fixed
    - Dynamic loopback Desktop discovery across ephemeral ports, so local connect is no longer stuck around 40 seconds.
    - Session paging now respects the dashboard limit of 100 per page, fixing dashboard-sessions-422 and restoring full session lists.
    - Startup no longer freezes waiting on loopback endpoints. Readiness steps report in order with strict timeouts.
    - False "Invalid gateway API key API_SERVER_KEY" banners on named profiles. Loopback pairing token auth and dashboard WebSocket fallback are used instead.
    - Page only is truthful: prompt shows 1/N, the active page is IN, other tabs are OUT, and the model never receives unselected tabs.
    - Local Bot Mode profile discovery when Dashboard authentication replaces the root page with sign-in HTML. Public status identifies the dashboard; the trusted signed-in tab and one-use WebSocket ticket load the real roster.
    - Hardcoded profile fallbacks and avatars are gone. Roster, avatars, and preview cards come from the live authenticated dashboard over the active gateway connection.
    - Group chat member avatars hydrate and align correctly.
    - Exiting Bot Mode no longer drops dashboard WebSocket transport or connection state.
    - Connection test verifies the desktop dashboard WebSocket even if the API port is offline.
    - Pin and reset keep the current conversation identity and refuse snapshots from a different session, profile, or gateway.
    - Skills load for the active profile over dashboard WebSocket on local, remote, and cloud.

    Requires Firefox 142 or later.

    Source code released under MIT Licence

    Download file
  • Version 0.3.1

    Released 27 Aug 2026 - 7.89 MB
    Works with firefox 142.0 and later
    Version 0.3.1 focuses on connection reliability and fixes a page-injection crash.

    • Fixed automatic gateway pairing when your Hermes runtime requires an API key. Connect to Hermes now opens the approval screen instead of dropping to manual setup.
    • Fixed a repeated "Identifier 'browserApi' has already been declared" error that could appear in Vivaldi and other Chromium browsers after content scripts were re-injected.
    • Content-script recovery is now probe-first: only missing scripts are injected after an extension reload, instead of re-running every script.
    • Startup timing instrumentation and an internal operations toolkit were added (no user-visible change).
    • No changes to permissions or host access in this release.

    Requires Firefox 142 or later.

    Source code released under MIT Licence

    Download file
  • Version 0.3.0

    Released 22 Aug 2026 - 7.88 MB
    Works with firefox 142.0 and later
    Hermes Browser Extension v0.3.0

    This is the largest Hermes Browser Extension update so far, with major improvements to browser context, local-document workflows, session reliability, privacy, customization, and the overall Firefox experience.

    WHAT'S NEW

    • Added approved local HTML, browser-rendered PDF, and localhost workflows. Local files require both Firefox file access and explicit Hermes Browser approval.

    • Added configurable right-click actions with current-session, new-session, and background routing.

    • Expanded localization across 21 languages and added complete browser-native locale packs.

    • Improved Hermes Assist reliability, model routing, session creation, launcher placement, safe draft application, and duplicate-injection protection.

    • Added stronger Cloud session continuity, dashboard profile discovery, asynchronous delegation recovery, and session-scoped model/provider selection.

    • Added cross-surface text zoom, accessibility-focused font profiles, validated custom themes, VS Code theme imports, and Agent Theme Studio.

    • Improved the Side Panel settings experience with a persistent header Save action, compact close control, clearer button alignment, and simplified settings organization.

    • Fixed Issue #73 by opening the /commands and skill menus above the composer, keeping long prompts visible without covering or compressing the text area.

    • Improved startup diagnostics, control-state presentation, attachment controls, keyboard behavior, reduced-motion support, and responsive layouts.

    • Added stable Firefox add-on identity and Mozilla-hosted automatic update support.

    SECURITY AND PRIVACY

    • Sensitive fields, credentials, payment information, MFA values, restricted browser pages, stale document references, and credential-bearing URLs fail closed.

    • Browser context remains explicitly user-controlled and bounded.

    • Local-document access does not bypass sensitive-action or restricted-page protections.

    • Controller and companion diagnostics retain bounded metadata and redacted receipts only. They do not persist raw page text, typed values, credentials, screenshots, response bodies, PDFs, or uploaded file contents.

    • Hermes Browser does not request cookies, browsing history, bookmarks, password-manager access, or native messaging.

    FIREFOX COMPATIBILITY

    This release supports Firefox 142 and newer.

    Firefox receives the capability-safe WebExtension feature set. Chromium-only debugger access and trusted-input browser control are not enabled or claimed on Firefox.

    Full release notes:
    https://github.com/abundantbeing/hermes-browser-extension/releases/tag/v0.3.0

    Source code released under MIT Licence

    Download file
  • Version 0.2.0

    Released 18 Aug 2026 - 7.86 MB
    Works with firefox 142.0 and later

    Source code released under MIT Licence

    Download file
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