Firefox add-on with keyword - tabellenkalkulation

OneTab - Too many tabs? Convert tabs to a list and reduce browser memory

Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer

A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.

Show tabs like a tree.

Easily save and organize batches of tabs as bookmarks. Clear your tabs, clear your mind. Only for Firefox.

Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

Create, modify, and quickly change tab groups

Increase browser speed and reduce memory load and when you have numerous open tabs.

New Tab Override allows you to set the page that shows whenever you open a new tab.

Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu.

Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!

An easy-to-use tab reloader with custom reloading time settings for individual tabs

A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab.

The first addon you should be installing on a fresh Firefox install. A must have. The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color.

Copy the title and URL to the clipboard.

Automatically refresh tabs based on custom time intervals

Add a badge to the toolbar that shows the number of currently open tabs in a window or all windows.

The Tab Rotator automatically switches between the open tabs of a browser window after a certain amount of time.

Easy tab search & management. Get a keyboard-accessible search interface for managing your tabs.

A very simple tabbed browsing extension that loads your homepage when you open a new tab. If you have multiple homepages, the first is chosen.

A new friend in every new tab.

Copies HTML tables to the clipboard or exports them to Microsoft Excel, CSV, Google Sheets, Office 365, etc.

Control your tab volume.

Unload your tabs to free resources and prevents them from loading unintentionally

Tab browsing with an added boost.