Add-ons

by sloprlek

833 Add-ons in this Collection

HttpFox by Martin Theimer

Rated 4 out of 5 stars 168 reviews

90,429 users

An HTTP analyzer addon for Firefox

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 358 reviews

146,938 users

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Wiktionary and Google Translate by Zen

Rated 4 out of 5 stars 212 reviews

65,492 users

(former Google Dictionary and Google Translate)

In-line dictionary for any word you point to or double-click; whole page translation of any web page in another language.

RightToClick by IKRG

Stops javascript annoyances such as forbidden right click, forbidden text selection or disabled features like copy/save images from web-pages.

Fast Dial by telega

Rated 3 out of 5 stars 2,542 reviews

117,866 users

Visual bookmarks for Firefox.

QuickNote by Leszek Życzkowski, Jed Brown, others

Rated 5 out of 5 stars 174 reviews

28,744 users

A simple note-taking extension.

Webmail Ad Blocker by Jason

Rated 4 out of 5 stars 203 reviews

107,414 users

Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.

gContactSync by Josh Geenen

Rated 4 out of 5 stars 224 reviews

90,989 users

Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

Mozilla Archive Format, with MHT and Faithful Save by Christopher Ottley, Paolo Amadini

Rated 4 out of 5 stars 314 reviews

168,078 users

— 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!

KeeFox by Luckyrat

Simple and secure password management. Login automatically, never forget another password, stay in control of your passwords and improve their security. Powered by the world-renowned KeePass Password Safe.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 103 reviews

83,595 users

Wappalyzer is a browser extension that identifies software on websites.

Translate This! by Bradley Rosenfeld

Rated 3 out of 5 stars 103 reviews

89,834 users

Translate the whole entire page or just a selection using Google Translate.

Zoom Page by DW-dev

Rated 5 out of 5 stars 159 reviews

80,394 users

Full featured zoom manager with independent page and image zoom modes. Choose from four zoom modes: Default Zoom, Fit-To-Width, Default Zoom + Site Specific or Fit-To-Width + Site Specific. Button style and zoom levels are fully configurable.

X-notifier (for Gmail,Hotmail,Yahoo,AOL ...) by Byungwook Kang

Rated 4 out of 5 stars 1,698 reviews

96,301 users

Notifier for gmail, yahoo, hotmail, aol and more webmails.
X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, POP3/IMAP, facebook, twitter and more

Autofill Forms by Sebastian Tschan, Egor Zindy, others

Rated 3 out of 5 stars 412 reviews

64,421 users

Autofill Forms enables you to fill out web forms with one click.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 56
Results 6175 of 833

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections

More by this User

See all collections by this user