bugfix

Fixed
Fixed AI Assistant errors when using Gemini models with Agent skills or browser tools.
Switching between different AI models (Gemini, Claude, GPT) within the same conversation now works reliably, including conversations with tool calls.
Fixed Claude models failing when a task required multiple tool calls.

• Tree-Style Tabs: connector lines are back as an optional setting — enable them under Settings → Tabs → Tree-Style Tabs, with adjustable width, style, color, and opacity.
• AI Assistant: new "Rebuild Tab Tree" skill that analyzes your open tabs and organizes them into a logical tree, with tools that can read and reorganize tab parent-child relationships in the current window.

• When the side panel is too narrow, the AI Assistant now opens in a compact popup window instead of a new tab.

• Fixed AI Assistant becoming unusable after upgrading (invalid request address and disabled tools) — configurations now repair themselves automatically, no manual reset required.
• Window names and Quick Access changes made by AI skills now appear in the side panel immediately, without reopening it.
• Resetting Tree-Style Tabs settings now reliably resets every option.

Added
AI Assistant: 100+ skills covering writing, research, learning, development, and more. Supports web search, image generation, and thinking process display.
AI Assistant: New browser automation skills — manage tabs, bookmarks, snapshots, and Quick Access through natural language.
Quick setup AI providers with preset configurations and auto-detect available models.
"Ask AI Assistant" option in the tab context menu.
Option to close tabs after bookmarking.
Changed
Redesigned AI Skills system with category browsing, featured recommendations, and ASK/Agent mode separation.
Redesigned AI model configuration and provider management.
Redesigned setup wizard with streamlined steps and premium feature discovery.
Site-specific settings are now a Pro feature.
Fixed
Improved AI conversation reliability, error handling, and multi-language support.
Fixed side panel auto-scroll, tab tools, and context menu issues.

[3.7.3] - 2026-06-25

Added

• New appearance option to automatically close the side panel when a web page or video goes fullscreen, for a distraction-free viewing experience.

Fixed

• Fixed bookmark sync for large libraries — spaces with thousands of bookmarks now sync to the cloud reliably.
• The bookmark count shown for a device now reflects what actually synced, and any sync that can't complete is clearly reported instead of appearing to succeed.
• Smart Assignment works again — newly opened tabs are automatically moved to their matching window by URL rule, and that window is brought to the front.

v3.7.2
2026-06-11
Added
List Style (Pro) — A new settings page to fine-tune how list items look across Tabs, Bookmarks, Quick Access, History, Recently Closed, Reading List, Search Results, and Tab History. Adjust icon size and shape, title font size, weight, and number of lines, and subtitle font size and opacity — globally or per feature — with instant preview in the side panel. Your existing bookmark font size, bookmark icon size, and tab title line settings move here automatically.
The bookmark space switcher in the side panel is now always visible: view followed spaces without joining one, search inside a followed space, and local bookmark search also surfaces matches from followed spaces. Users without followed spaces see a quick path to Cloud Sync settings.
Changed
The multi-select checkbox is now larger and easier to click.
More tab, appearance, keyboard shortcut, and snapshot settings can now be found through the settings search.
Redesigned the Keyboard Shortcuts page with cleaner cards and a clearer layout: newer shortcuts now appear under their proper categories instead of "Other", unassigned shortcuts show a "Not set" label, and opening the browser's shortcut settings highlights the matching shortcut for easier editing.
Tab snapshots are now more generous: you can keep many more snapshots, and both the auto and manual snapshot limits are adjustable by everyone (pinned and locked snapshots no longer count toward the manual limit). The auto-snapshot trigger options (minimum tab count and tab difference threshold) and the ignore-URL list (to keep chosen pages out of snapshots) are also available to everyone, and the startup snapshot reminder description was rewritten to match how it actually works.
Redesigned the Cloud Sync settings page: every sync option now explains what it syncs, when it helps, and how data from multiple devices is merged, with a cleaner and more consistent layout.
Renamed the "Snapshots" sync option to "Tab Snapshots" and "Windows, Tab Groups and Tabs" to "Open Windows & Tabs" to avoid confusion.
Bookmark sync now always reports its result — including "already up to date" when nothing changed.
Restoring a bookmark snapshot while in a sync space now warns that the restored changes will automatically sync to the cloud and your other devices.
Fixed
Completed missing interface translations across several languages.
Some keyboard shortcuts were missing a description or showed a raw text label; their descriptions now display correctly in all languages.
The "Collapse or Expand All Groups" and "Collapse or Expand Other Groups" shortcuts can now collapse groups again — previously they could only expand them.
The "Discard Tab Tree" and "Reload Tab Tree" shortcuts now apply to every nested tab, not just the immediate child tabs.

bugfix

[3.7.0] - 2026-05-28

Added

• Browser Right-Click Menu — Access tab management features directly from the browser's native right-click menu, no side panel required. Supports page, tab (Chrome 150+), frame, link, and extension icon contexts.
• Suspend, reload, close, duplicate, and sort tabs — with same-site and same-domain variants showing live tab counts.
• Group tabs by domain or with AI, ungroup all, manage tab groups from the menu.
• Create and view tab snapshots, access snapshot settings.
• Rename tabs, copy tab info, generate QR codes, view tab history, and schedule tab tasks.
• Clear cookies and site data for the current site.
• Mute all playing tabs, switch to the last accessed tab, and lock the current tab.
• Open links in a popup window directly from the link right-click menu.
• Quick actions from the extension icon menu: view snapshots, set sidebar position, toggle page sidebar, and tab group operations.
• Split View: arrange tabs side by side or top-and-bottom via the browser right-click menu.
• Right-click menu settings page with drag-and-drop reordering, per-item enable/disable, and per-context type toggles (page, tab, frame, link, extension icon).
• Option to show checkboxes during multi-tab selection — when enabled, favicons are replaced with checkboxes in multi-select mode for clearer selection feedback. Configure in Settings > Tabs > Appearance.
• New version updates now appear as a notification in the message center for better visibility.
• Extension icon click action now supports "Tab Snapshots" and "AI Assistant" options, in addition to side panel, popup, and pop-up window.
• Content Script Exclusion List — New "Other Settings" page where you can add domains to exclude from VertiTab's content scripts, resolving conflicts with websites like Google Gemini. Disabled features on excluded domains are clearly listed.

[3.6.1] - 2026-05-04

Added

• New keyboard shortcuts that work without opening the side panel: Rename Current Tab, Open Scheduled Task, Create QR Code, and Open Debug Mode.
• Responsive layout for narrow side panels (Vivaldi, Firefox, etc.): menus now wrap text properly, and complex dialogs automatically open in a separate popup window for a full-size editing experience.
• Tab History and Recently Accessed Tabs shortcuts now open in a popup window when the side panel is closed, replacing the previous content script overlay for better compatibility.

Changed

• Redesigned drag and drop for intuitive tab management: reorder tabs by dragging above or below, or drop in the center to create tab groups and tree structures. Added clear visual cues, removed hover delays and action menus for a faster flow.
• Modernized tree tabs with a cleaner interface.
• Expanded and collapsed states of tree tabs are now preserved across browser restarts, so your workspace stays as you left it.
• Improved session restore to reliably recover your full tab tree after restarting the browser.

Removed

• Removed connector lines and advanced styling options from tree tabs to prioritize simplicity and performance.

[3.6.0] - 2026-04-26

Added

• Bookmark Cloud Sync — Multi-device bookmark management and cloud synchronization based on sync spaces, powered by Merkle-CRDT architecture for deterministic conflict resolution and zero data loss.
• Auto-snapshot before cloud sync and on bookmark changes, with smart content-based deduplication to save storage.
• Scheduled snapshots at fixed intervals (every 6h, 12h, daily, or weekly).
• Import and export bookmark snapshots in HTML (Netscape) or JSON format.
• Fine-grained snapshot settings: auto-snapshot toggle, maximum retention count, minimum change threshold, and scheduled interval.
• Lock Tab — Pin a tab to its current URL: close attempts now ask for confirmation, links always open in a new tab, and navigation away is automatically reverted. A lightweight "Prevent accidental close" option is also available in per-site settings.
• Close tabs in the current group — New right-click submenu for grouped tabs: close other/above/below tabs, or close tabs sharing the same hostname or root domain — all scoped to the current group only.
• Color-blind / color-weak mode — Applies an accessibility-friendly Okabe-Ito palette to tab group colors, plus a dedicated color-blind theme.
• Custom tab group colors — Override any Chrome tab group color with your own hex value, configured separately for light and dark mode, with live preview.
• Merge groups — Combine several tab groups into one from the group right-click menu: pick a target name and color, select the groups to merge, and quickly copy name/color from any group via hover buttons.
• Auto-collapse inactive groups — Automatically collapse a tab group after a configurable idle time. Configure globally in settings, or per-group via the right-click menu with an option to promote that value as the new global default.
• Debug mode — Mark tabs or whole sites as "in development". A debug icon appears on these tabs; clicking it clears the configured site data and then performs a hard reload. You can exclude specific cookies (including cross-domain auth/SSO cookies) from being wiped.

[3.5.2] - 2026-04-12

Added

• Tab history is now enabled by default. Each tab automatically records visited URLs and displays navigation type (typed, link click, back/forward, reload, etc.), visit time, and a current-page indicator.
• View a tab's browsing history via hover button, right-click menu, double-click, or middle-click.
• Customizable keyboard shortcut to view the active tab's history: when the side panel is open, a history dialog appears inside it; when the side panel is closed, a floating overlay appears directly on the current page (some restricted pages may not support the overlay).
• Customizable keyboard shortcut to view recently accessed tabs for quick switching: when the side panel is open, the list appears inside it; when the side panel is closed, a floating overlay appears on the current page.
• Free users can view up to 5 history entries per tab; PRO unlocks full history, search, paginated loading, and configurable display limits.
• Recently closed tabs now show a history-count badge on the expand button.
• Go Back / Go Forward buttons now show a disabled state when no navigation history is available.
• New setup wizard step introducing right-click menu features.
• Configurable hover delay for the page sidebar trigger area.

Changed

• Tab history inline list and dialog now share a consistent UI — both display URL, navigation type, visit time, and current-page indicator.
• "Show URL" and "entries per page" settings now apply to both inline list and dialog views.
• PRO features gracefully revert to free-tier limits on logout or membership expiration — all collected history data is preserved.
• Page sidebar redesigned with Shadow DOM for better compatibility with host pages and smoother dismiss behavior.
• Settings for history retention days, display count, and per-tab limit now use slider controls for easier adjustment.
• Auto window grouping improved to better handle SPA (single-page application) navigations.

Fixed

• Fixed middle-click on a tab history entry not opening the URL in a new tab.
• Fixed clicking a history entry on an inactive tab not activating that tab first.
• Fixed right-clicking a history entry showing both the history menu and the tab context menu at the same time.
• Fixed tab groups breaking apart after browser crash recovery.
• Improved snapshot auto-save and crash recovery reliability.
• Fixed tab browsing history not being preserved during cross-device sync.

Permissions

• New permission: webNavigation — enables accurate tracking of tab navigation events, detection of navigation types (typed URL, link click, back/forward, reload), redirect identification, and SPA navigation detection. This makes tab history richer and more reliable.

[3.5.1] - 2026-04-06

Fixed

• Fixed various features (snapshot restore, bookmark restore, AI grouping, tab operations, etc.) not working or hanging when the side panel is closed.
• Fixed auto window grouping aggressively stealing focus when moving tabs between windows.
• Fixed closing a tab sometimes switching to a frozen/loading tab instead of the last active tab.
• Fixed "Back to tabs after click" not working when clicking on an open tab in search results.