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PDF Download Requires Restart

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Rated 2 out of 5 stars (690)
989 weekly downloads

Check4Change Requires Restart

Check4Change (aka C4C) is a simple extension that allows you to select a part of a web-page, and get notified when it changes.

Rated 4 out of 5 stars (174)
961 weekly downloads

Browser-Security

Browser Security - DER Schutz vor Phishing und Malware

Rated 4 out of 5 stars (18)
920 weekly downloads

Gmail panel Requires Restart

Check and do whatever you want into your Gmail easily with a panel.
It also alerts you the unread emails.
***You need to have enabled the "Unread message icon" (Settings > Labs)***

Rated 4 out of 5 stars (82)
873 weekly downloads

Tab Suspender (Tab Unloader) Compatible with Firefox 57+

Automatically suspend (hibernate) inactive tabs to free up system resources

Rated 4 out of 5 stars (19)
818 weekly downloads

No-Script Suite Lite

Block Scripts (and more) on Untrusted Websites

Rated 4 out of 5 stars (17)
764 weekly downloads

EuroClix Clix Assistent Compatible with Firefox 57+

Sehen Sie sofort, ob Sie Clix auf der Webseite, die Sie besuchen verdienen können.

Rated 5 out of 5 stars (4)
736 weekly downloads

Coupons at Checkout

Never search for a coupon again! Coupons at Checkout uncovers coupon codes automatically at thousands of online stores. Wherever you see a ‘Coupon Code’ box, now just click to see all the retailer's latest coupons! As featured in CNET & Lifehacker!

Rated 5 out of 5 stars (39)
643 weekly downloads

Distill Web Monitor (formerly AlertBox) Requires Restart

Monitor web page and feed for changes. Get SMS and email alerts when change is detected.

Rated 4 out of 5 stars (190)
642 weekly downloads

Parental Control: Porn Blocker

Parental control app that denies access to porn sites. It uses a semantic parser that scans and blocks all kind of adult content.

Rated 5 out of 5 stars (62)
634 weekly downloads

Panel View for Google™ Keep Featured

A handy and reliable extension designed to store your notes, lists and photos.

Rated 5 out of 5 stars (25)
623 weekly downloads

Country Flag + Compatible with Firefox 57+

Shows country flag based on the server location of the active tab's url

Rated 4 out of 5 stars (6)
613 weekly downloads

GMX MailCheck for Firefox Requires Restart

Mail notifier for multiple email accounts

Rated 3 out of 5 stars (26)
560 weekly downloads

Messenger for Skype™ Web Featured

Access to Skype Web from within a toolbar panel. You can use this app to call your friends without the need to switch current browser tab

Rated 5 out of 5 stars (9)
505 weekly downloads

Ciuvo - Price check in your Browser

Ciuvo finds best deals for your wanted product. Price check, comparison, customer reviews, product videos and coupons right in your web browser.

Rated 4 out of 5 stars (124)
491 weekly downloads

Who Deleted Me - Unfriend Finder Compatible with Firefox 57+

Keep track of who unfriends you on social networks.

Rated 4 out of 5 stars (14)
463 weekly downloads

Disable Add-on Compatibility Checks (Version 40+)

Reinstates the extensions.checkCompatibility preference.

Rated 5 out of 5 stars (4)
458 weekly downloads

Twitch Now

Twitch Now keeps users updated and connected to the Twitch experience outside of website.

Track your favorite streams easily with Twitch Now and get a notification when one of your favorite streams goes online.

Rated 5 out of 5 stars (18)
445 weekly downloads

PhishWall

PhishWall

Not yet rated
417 weekly downloads

Tab notifier Compatible with Firefox 57+ Featured

Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!

Rated 4 out of 5 stars (46)
408 weekly downloads