Tab Workspaces
Organize your tabs into workspaces. Switch between workspaces to change which tabs are displayed at the moment.
803 users
Container Tab Groups
Chrome-like tab groups using private and isolated containers: The ultimate tab manager and groups for Firefox.
795 users
Rutor
Быстрый доступ к рабочему зеркалу Rutor: просто нажмите на иконку расширения и сразу переходите на актуальное rutor.info.
794 users
Insight - Track Your Time Online
Know how you spend your time online. Insight by Freedom tracks the time you spend on websites, so you can improve your habits.
791 users
Switch To Previous Active Tab & Reload All Tabs
Activate the last accessed tab in the same window, or any window. Right-click the toolbar button for a most recent tabs list (MRU) and options. Adds "Reload All Tabs" to the tab right-click context menu. (For Fx115/Fx128, use "See all versions".)
790 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.
789 users
Per-Tab Volume Controller
Take control of your browser's audio experience with per-tab volume management. Set custom volume levels for each website, and enjoy precise fine-tuning with 0.1% increments. Perfect for managing multiple audio sources across different tabs.
789 users
Pin Unpin Tab
Pin Unpin Tab can pin or unpin a tab by: - a long left mouse click anywhere on the webpage (an arguably more efficient alternative to the no longer possible double-click on tab) - a keyboard shortcut - a click on the pin icon on browser toolbar
784 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)
776 users
Simple Proxy Switcher
A simple add-on to quickly switch your proxy servers Currently only supports http/s proxy
775 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.
774 users
The Tab Suspender
Suspends inactive tabs after a set time by replacing them with a custom suspended page.
774 users
Custom New Tabs
Load any URL you want when a new tab is opened. CNT is the only add-on to place the focus intelligently on the chosen web page (like a search engine's search box) or in the URL bar!
767 users
Twitch Error AutoRefresher
This extension will automatically refresh twitch stream whenever any error occurs.
766 users
Intention - Stop Mindless Browsing
Automatically pause distracting websites so you can scroll less and do more. Say goodbye to mindless browsing.
762 users
Mute YouTube ads
Mutes any www.youtube.com tab when it detects video ads on it. Unmutes the tab when the ads are gone. Backs out on tabs where you manually change the muted state of the tab.
758 users
Volume Booster Ultra
Amplify any tab's audio up to 1000% with crystal-clear sound Upto 600%, smooth volume transitions, and intuitive one-click controls.
756 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.
751 users
