Up & Coming Extensions



Online Timer

Rated 3 out of 5 stars (1)
2 users

Rewrite HTTP Headers (JS) Requires Restart

A light-weight (pseudo) rules-engine to easily modify HTTP headers in either direction

Rated 5 out of 5 stars (6)
197 users

Toast Notification Alerter Add-on for Windows 8

Replace XUL Alert with Windows 8's Toast Notification

Rated 3 out of 5 stars (8)
132 users

Auto Close Tabs

Set maximum number of opened tabs in a window. (cloned from Lim Chee Aun's max-tabs)

Not yet rated
11 users


Check your smiletron version.

Not yet rated
1 user


A brilliant way to store, share and easily organize all your links, videos, and notes. Access your Clutterboard from any device, anywhere, anytime.

Rated 5 out of 5 stars (1)
53 users

Bugzilla Request Flags

A tiny add-on that adds a toolbar icon that indicates how many needinfo requests you currently have.

Not yet rated
4 users

Direct Currency Converter for SeaMonkey

Converts prices from any currency ($, £, etc.) to prices in a selectable currency automatically while browsing.

Not yet rated
50 users

Highlight Tab Requires Restart

Easily highlight tabs in a choice of colours. How to use: Right click on tab, select "Highlight Tab" and choose colour. Done!

Rated 4 out of 5 stars (5)
137 users

Page Control

Prevents popups from opening.

Rated 4 out of 5 stars (14)
431 users


Easy to Use ,Fully automated Extension to book IRCTC tickets ,Specially designed for TATKAL

Rated 4 out of 5 stars (4)
416 users

Wepware - Capture and Share Live Content Requires Restart

Grab live snapshots of anything on the internet, organize your collected content into folders and share with friends through SNS.

Not yet rated
14 users

Modify Response Headers Requires Restart

Add, modify and filter HTTP response headers

Rated 4 out of 5 stars (2)
417 users

Schule am Bildschirm

Damit können Seiten direkt zu schabi.ch hinzugefügt werden und beim Öffnen eines neuen Tabs wird schabi.ch automatisch geladen.

Not yet rated
19 users


This extension shows the contents of password fields in cleartext (instead of the asterisks) to ease out the password typing process. Right click on password field and select "Show Password" to view & "Hide Password" to mask back to asterisks.

Rated 4 out of 5 stars (1)
944 users


Extension que mejora la interfaz de U-Cursos, agregando funcionalidades no presentes de manera nativa en la pagina

Not yet rated
7 users

Coursera Autoplay

Auto skip in-video quizes and continue to the next video when current video ends.

Rated 1 out of 5 stars (1)
11 users

Holmes CSS

Holmes is stand-alone diagnostic CSS stylesheet that can highlight potentially invalid, inaccassible or erroneous HTML(5) markup by adding one class.

Not yet rated
221 users

Sort By Name Tweak Requires Restart

Sort bookmarks by name tweak for Firefox 29+

Not yet rated
76 users

YouTube comments remover

Removes the comments from a YouTube video page


Rated 4 out of 5 stars (4)
208 users