VertiTab v3.8 Changelog: Cloud Sync to Your Own S3 Storage

2026-09-26

Cloud Sync can store your sync files in your own S3-compatible storage (Pro, Settings → Cloud Sync → Storage). Supported providers include Cloudflare R2, Backblaze B2, Amazon S3, Tencent COS, Alibaba Cloud OSS, Huawei OBS, DigitalOcean Spaces, Wasabi, Hetzner, Google Cloud Storage, IDrive e2, MEGA S4, and other S3-compatible services.
- Your account uses one storage at a time. Switch on one device, and your other devices follow on their next sync.
- Access keys stay on each device and are never uploaded. A device without the keys pauses sync until you enter them.
- Private buckets are supported. Test connection checks the bucket before saving and warns you if it is still public.
- You can switch back to RabbitPair Cloud at any time. Files in your bucket are never deleted.
On the website account page, you can choose which storage to view when managing synced data.
Set Click extension icon action to Open page sidebar to show or hide the page sidebar with the extension icon or the Open Side Panel shortcut. You can also turn off Show the page sidebar when hovering the window edge.
The setup guide now asks how VertiTab should open and which panel to show first.
The window switcher opens in a centered dialog. Drag windows to reorder them, see active and suspended tab counts, and choose whether the active window stays at the top (Pin active window to top).

Popup windows open centered and remember their own size and position. This applies to the extension icon popup, each quick access item, bookmarks, reading list, history, recently closed tabs, "Open link in popup", menu dialogs, AI Assistant, and the window switcher. The left and right split-screen options were removed.
Window icons and colors now look the same in the window header, window switcher, tree view, and tab-by-window layout.
The page sidebar header stays hidden until you move the pointer to the top. A sidebar opened from the icon or shortcut stays open until you move into it and leave.
Cloud sync errors are shown in your language, and a data type whose sync failed no longer appears as synced.
Window sync stays linked after the computer sleeps, the browser restarts, or the network drops, and reconnects on its own. Windows restored one by one with Ctrl+Shift+T are each linked again, and a window you link by hand is not changed automatically.

Centered popup windows now open at the size you set.
Linking a cloud window no longer asks how to merge when the tabs are already the same, and choosing "Use local" no longer shows the large-change prompt again.
Deleting a cloud window no longer lets it re-attach to the wrong window after a restart.
With Open new tab next to active tab on, new tabs appear in the right spot right away, including in tab panels and multi-window layouts, and no longer moves tabs that are in a tab group.
Scrolling to the active tab and keyboard selection now work in every tab list layout.
When the side panel is not available, including on mobile, the extension icon opens the popup instead.
If a cloud file cannot be downloaded, sync stops and retries instead of overwriting changes made on your other devices.
A problem during browser startup no longer stops features such as auto suspend, auto-collapse of groups, and sync on startup.
Some failed cloud sync requests were reported as successful. They now show an error.

Version 3.8