Add extensions, get work done

Planet View displays a beautiful satellite image from Planet every time you open a new tab.

Keyboard oriented tab (group) manager. By entering a command in omnibox (address bar, location bar), tabs that match the conditions are displayed or hidden to group multiple tabs in a pseudo manner.

A better auto scroll for Firefox.

Digtal Clock With Colorfull Designs for Mozilla Firefox

Keep track of the time you spend surfing on the web.

Limit the number of visible tabs, and stash unused tabs in an overflow list.

Add a context menu option to images to re-host them to Imgur

TabsUp opens your own set of bookmarks at browser startup with "once per day" option. PermaTabs opens all bookmarks from selected folder while RandomTabs some of them — randomly. Now you won't forget to look at your favourite pages from time to time.

Release browser resources by suspending the tabs you aren't using.

Quickly search through all your open tabs/bookmarks to switch to/open instantly Inspired by the 'helm' package for Emacs (specifically helm-buffers-list command) Works with other extensions such as Tree Style Tab Will open tabs in other windows

Adds context menu options and hotkey shortcut to copy a URL while removing all parameters

Lens replaces your new tab page with gorgeous HD images from Unsplash.

Auto-Login for Magister 6 webapp.

Automatically discard or suspend tabs after a short amount of time to preserve system resources

ConvertoPDF allows you to view, edit, convert and create PDFs online, plus get direct access to yahoo web search on your new tab page.

Backup and restore tabs.

Adds a context menu option for selecting a random tab in a Tree Style Tab tree.

Download HTML content to .html file

Minimalistic per-tab volume mixer.

Extension for adding Chromium's "New Tab to the right" to Gecko/Firefox

Opens every new tab after the last opened, activated or moved tab.