YouTube Video Downloader
An ultra lite extension to download YouTube videos in all popular formats!
2,348 users
{find+}
A find-in-page extension with support for regular expressions.
2,346 users
CustomTube - Restore the Old YouTube Layout
Choose your own YouTube layout, and more!
2,346 users
2,345 users
Video Speed Control
Easily control HTML5 video playback speed via toolbar popup
2,345 users
pCloud Save
Save your favorite web images, videos, text and more to pCloud - up to 10 GB free storage. ★ Save web content through the right-click context menu ★ Select multiple images and save them at once ★ Mark articles, paragraphs and other types of text
2,345 users
About Sync
Show information about Firefox Sync. This addon shows information about your Sync account, including showing all server data for your account. It is designed primarily for Sync developers or advanced users.
2,344 users
JavaScript Warning
You can store websites in a list which are not supposed to execute JavaScript code. If they try to do so the Add-on warns you.
2,344 users
Twitter Image&Video Downloader
Download: -Videos -GIFs -Original Photos embedded in Tweets, in multiple resolution available with 1 click. Easily send videos from Twitter to GIF hosting & processing sites to convert. (Currently supports Giphy.com, EzGif, ImgFlip, Gifs.com)
2,341 users
AdBlocker for Gmail™
Removes all annoying Ads and Banners from Gmail
2,338 users
FetchV - Video Downloader for m3u8 & hls
Easily save online videos such as m3u8, live streams, mp4, webm, etc. to your computer.
2,335 users
PlugIn-Checker
The easiest and simplest way to check for PlugIn-Updates. Never forget to install the newest safe versions.
2,335 users
KeeForm
KeeForm is a simple form filler for KeePass. It requires a plugin which can be downloaded at https://keeform.org. KeeForm is listed as experimental, but is stable! Privacy Policy: KeeForm does not collect any information and does not track you.
2,333 users
Panorama View
Easily group and organize tabs visually, like the old Panorama feature.
2,330 users
Mute Tab (WebExtension)
Easily mute all tabs with just one click!
2,325 users
Wikipedia Vector Skin
This extension restores the old Wikipedia Layout and Design by appending "?useskin=vector" to Wikipedia URLs.
2,322 users
Movie Search
The easy and fun way to watch trailers, explore popular movies and TV shows. Movie Search Makes Yahoo your default search when you install it.
2,322 users
Video Control for Instagram
Adds volume and play controls to Instagram videos.
2,318 users
Popupblocker
Popupblocker can block every popup. Many websites open new windows with ads, when you try to mark text or click something. This add-on will block these and show a really small notification.
2,318 users
Dezoomify
Detect zoomable images in web pages and download them with dezoomify.
2,317 users
Spotify Player
Spotify Player Firefox's extension
2,313 users
2,311 users
Enable Bing Chat
Enables Bing Chat in Firefox.
2,310 users
Free Visio Viewer (Mac, Windows, Linux)
Open your Microsoft Visio files for free
2,309 users
Eight Dollars
Eight Dollars can help you tell the difference between actual verified accounts and twitter blue users.
2,305 users