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Show Profile Requires Restart

Display profile hint on window title or customized locations (with or without individual icon).

Rated 4 out of 5 stars (13)
10,937 users

Donation Reminder Requires Restart

Never miss a donation for your charity or good cause again with the easyfundraising Donation Reminder.

Not yet rated
10,385 users

GMX MailCheck for Firefox Requires Restart

Mail notifier for multiple email accounts

Rated 3 out of 5 stars (17)
9,792 users

Nagios Checker Requires Restart

The statusbar indicator of the events from the network monitoring system Nagios.

Rated 5 out of 5 stars (60)
9,612 users

Work Offline Requires Restart

Adds work offline mode UI to Mozilla Firefox.

Rated 4 out of 5 stars (50)
9,501 users

Gmail Notifier Requires Restart

Note from Mozilla: This add-on has been discontinued. Try WebMail Notifier instead.

The original notifier for Gmail.

Rated 4 out of 5 stars (621)
9,375 users

Google™ Keep

Google Keep is a handy and reliable extension designed to store your notes, lists and photos.

Rated 4 out of 5 stars (17)
8,204 users

Telify Requires Restart

Converts telephone numbers into clickable links for use with CTI applications, SIP clients, Skype, Netmeeting, snom phones, the AGFEO TK-Suite Client and SerVonic IXI-PCS.

Rated 4 out of 5 stars (57)
8,130 users

Quick Maps

Google Maps in just a second:
• Hover the mouse over an address on a website and Quick Maps displays a Google Map right next to it
• Mark any location name + right-click to look it up directly
• works for US, UK, Germany, Spain, France & many more

Rated 4 out of 5 stars (49)
7,948 users

PhishWall

PhishWall

Not yet rated
7,922 users

PlugIn-Checker

The easiest and simplest way to check for PlugIn-Updates. Never forget to install the newest safe versions.

Rated 3 out of 5 stars (11)
7,904 users

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 (29)
7,874 users

Pray Times! Requires Restart

Display daily Muslim prayer times.

Rated 5 out of 5 stars (373)
7,809 users

Firefox All Aboard v1.0

The Firefox desktop user onboarding tool for educating users about Firefox features and the organization behind Firefox.

Not yet rated
7,324 users

Rain Alarm Extension Requires Restart

This weather app warns you when rain is currently nearing. Instead of forecasting it warns using almost real-time data, which is more precise than any forecast can be.

Rated 4 out of 5 stars (26)
7,288 users

No-Script Suite Lite

Block Scripts (and more) on Untrusted Websites

Rated 4 out of 5 stars (16)
7,186 users

Disable HTML5 Fullscreen Alert

Disables "website is now fullscreen" alert

Rated 4 out of 5 stars (42)
7,125 users

FB Chat History Manager Requires Restart

Facebook Chat History Manager,save and view your chat history with friends on Facebook.

Rated 3 out of 5 stars (47)
6,785 users

LocalLink Requires Restart

Open local URLs ("file://") from any webpage. Please see the extension homepage for explanations, the mailing list and the newsgroup where I am happy to answer questions. I am sorry that - based on past experience - I had to decide to...

Rated 4 out of 5 stars (11)
6,753 users

Yahoo! Mail Notifier Requires Restart

This extension notifies you when new messages arrive in your Yahoo mailbox.

Rated 4 out of 5 stars (181)
6,409 users