Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Copy PlainText
Copy Plain Text without any formatting
Foxy Gestures
Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.
Tab Stash
A no-fuss way to save and organize batches of tabs as bookmarks. Clear your tabs, clear your mind.
CanvasBlocker
Alters some JS APIs to prevent fingerprinting.
Forecastfox (fix version)
Get international weather updates (via AccuWeather.com) displayed right in Firefox with this highly customizable extension.
Weather Extension
The best way to see the weather right in your browser. Easier than looking outside!
Metastream Remote
Watch streaming media with friends.
FoxyTab
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
Zoom Page WE
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
Snap Links Plus
Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well.
Clear Browsing Data
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click.
Impulse Blocker
Block distracting websites. Just list the sites you want Impulse Blocker to pause or completely avoid.
PocketTube: Youtube Subscription Manager
The best way to group your subscriptions Using this simple extension you can create collections that seamlessly fit into YouTube's layout.
Default Bookmark Folder
Allows you to choose the default bookmark location folder and quickly bookmark pages via a dedicated icon.
Clippings
Save frequently-entered text for pasting later.
Livemarks
Get auto-updated RSS feed bookmark folders.
History Cleaner
Deletes browsing history older than a specified number of days.
Link Gopher
Extracts all links from web page, sorts them, removes duplicates, and displays them in a new tab for inspection or copy and paste into other systems.
Minimal Theme for Twitter
Declutter and refine the Twitter web experience.
Midnight Lizard
Custom color schemes for all websites: night mode, dark themes, blue light filter, screen shader, high contrast, grayscale, etc.
Swift Selection Search
Swiftly access your search engines in a popup panel when you select text in a webpage. Context menu also included!
Private Bookmarks
Enables a password-protected bookmark folder.
Tabby - Window & Tab Manager
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!
GIPHY for Firefox
Bring the power of a GIF search engine anywhere on the web. Respond to emails, tweets and more with GIFs quickly and easily. Add GIPHY GIFs to your Gmail, Facebook, Twitter and more. Just search, drag and drop or right click!
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
Stylebot
Change the appearance of the web instantly
Adblock Plus
One of the most popular free ad blockers for Firefox. Block annoying ads on sites like Facebook, YouTube and all other websites. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Easy Screenshot
Capture a screenshot of the whole webpage, and save in your desktop in default.
Cisco Webex Extension
Join Webex meetings using Firefox ™
