Recently Updated Extensions
Auto delete cookies and localStorage objects as soon as they become unused
An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.
Lucifox Requires Restart
Read EPUB e-books and browse OPDS catalogs.
Rewrite http response body using search & replace patterns
adaware ad block improves your browser’s speed and protects your privacy by blocking ads and trackers. It also improves online security by blocking malicious URLs and establishing the most secure connection available.
The "Responsible Blocker" arrives to save the Internet, this extension blocks all those annoying ads, but allows only small and acceptable ads, so the websites you like can continue online.
The "Responsible Blocker" arrives to save the Internet
Complete YouTube Saver Requires Restart
Download YouTube videos in various formats including 1080p, 4K etc (DASH formats). Convert audio track from videos to MP3 or WAV, or save audio in native format (Ogg, AAC/M4A, MP3, OPUS). Save YouTube page, video, comments and subtitles to one folder
Now with 1080p Full-HD Support!
Download every YouTube video you want and you can download them as Full-HD MP4, FLV, 3GP, MP3, M4A and AAC formats. Easy & Fast!
Right Links Requires Restart
This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.
Google Reverse Image Search is a simple tool that lets you search the images reversely on Google Images and find the other copies of the very image you are looking for on the web.
Adds icons to buttons and/or menus.
Adds a small and simple button to YouTube videos that allows you to quickly download the audio of the video as an MP3 file (quality of the MP3 is as high as the video offers) without having to leave the page.
Xmarks Sync Requires Restart
Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!
"Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.
HTTPS Everywhere Requires Restart
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
Download Flash and Video Requires Restart
Download Flash and Video is a great download helper tool that lets you download Flash games and Flash videos (YouTube, Facebook, Dailymotion, Google Videos and more) with a single click.
The downloader is very easy to use.
Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.
Thumbnail Zoom Plus Requires Restart
Shows full image when you hover over a thumbnail. Works with Amazon, Baidu Images, Bing Images, Facebook, Flickr, Google+, Google Images, IMDb, LinkedIn, Netflix, Pinterest, Reddit, Twitter, Yandex, YouTube, Wikipedia, Yahoo Images, & many more.
Mozilla Archive Format, with MHT and Faithful Save Requires Restart
— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!
FoxyProxy Basic Requires Restart
FoxyProxy Basic is a simple on/off proxy switcher. More advanced features and configuration options are offered by FoxyProxy Standard.