Subject: Feature Request: Multiple Bookmark Panels Like Yandex Browser Tab Workspaces

[IFree]

Subject: Feature Request: Multiple Bookmark Panels Like Yandex Browser Tab Workspaces

Dear Firefox Developers (or Sidebery/Tree Style Tab team),

I've been trying to replicate the Yandex Browser's tab management feature in Firefox, where you have separate "windows" or panels of tabs that you can quickly switch between. In Yandex, this works like distinct workspaces: each panel holds its own set of tabs, and switching hides the others, making it easy to organize and navigate multiple projects without cluttering the main tab bar.

What I want:

Multiple independent panels (or sidebars/workspaces) for bookmarks and tabs.

Ability to switch between these panels seamlessly (e.g., via hotkeys, sidebar tree, or dropdown).

Each panel acts like a separate "window" within the browser: tabs in inactive panels are hidden/unloaded to save memory.

Drag-and-drop support to move tabs/bookmarks between panels.

Optional tree structure for nesting tabs within panels.

Similar to Yandex Browser's tab groups/workspaces or Vivaldi's tab stacks.

I've tested extensions like Sidebery, Tree Style Tab, Simple Tab Groups, Tab Workspaces, and Bookmark Switcher, but none fully match this workflow. Sidebery's panels are close but don't feel exactly like separate tab windows. Tree Style Tab is great for trees but lacks easy multi-panel switching.

This would greatly improve productivity for power users managing many tabs/bookmarks. Could you consider native support or recommend/enhance an extension for this?

Thank you!

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.