Open in Private Mode
Open the active tab in a private window via toolbar button or context-menu.
861 users
Live Reload — monitor and reload html, css, js
Addon for web devs. Monitor included JS, CSS and/or HTML in frames and automatically reload the host page when a change is detected in the included source. Supports inline reloading of stylesheets and frames without reloading the host page.
853 users
Copy/Paste and Save tabs list
Allow to copy and save every tab opened and paste a list of url to open in new tabs.
843 users
TST Tab Search
Search for or filter the Tabs in TST's sidebar, and quickly find and activate them.
828 users
Tabloc
Adds "Lock Tab" button. When you click links while the tab is locked, the link will be opened in a new tab instead of the current tab.
827 users
Tabs Backup & Restore
Keep manual or automatic backups of all tabs*, and restore on demand. Can also export backup file to disk to restore later, or to another profile, even on another computer or OS, as long as it has Tabs Backup & Restore installed. *(See description)
825 users
Copy As Plain Text
Easily copy the selected text without formatting to the clipboard via right-click menu.
824 users
Sleep Mode
Sleep Mode will temporarily put all tabs to sleep mode for saving RAM memory, saving battery and make your computer/laptop faster.
809 users
Move unloaded tabs for Tree Style Tab
Move tabs in the Tree Style Tab Sidebar without them becoming active.
807 users
WEB.DE Go!
$brand$ Go!, the fast and convenient start point: Your favourite websites at a glance, quick search, date & time and emails.
806 users
Sort Tabs by URL
Press (command or ctrl)-shift-o to sort all the tabs alphabetically by URL , the button in the toolbar, the toolbar context menu or the tools menu items.
795 users
Window Merger
Merge specified browser windows into each other. Or all of them into one. Simply right click to open Firefox’s context menu when multiple windows are open, or configure a keyboard shortcut. All wrapped up in one tiny free extension.
794 users
