Greasemonkey Vereist herstart Aanbevolen

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Waardering 4 van 5 sterren (1.012)
1.218.480 gebruikers

Flashblock Vereist herstart

Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...

Waardering 4 van 5 sterren (1.219)
519.522 gebruikers

Garmin Communicator Vereist herstart

The Garmin Communicator is an internet browser plugin that allows you to easily transfer data between websites and Garmin GPS devices.

Waardering 2 van 5 sterren (35)
434.075 gebruikers

EPUBReader Vereist herstart

With EPUBReader you can read ePub files just in Firefox. No additional software needed!

Waardering 5 van 5 sterren (178)
403.099 gebruikers

Mozilla Firefox hotfix

This official add-on enables Firefox to provide quick fixes for selected issues.

Waardering 2 van 5 sterren (8)
318.171 gebruikers

Session Manager Aanbevolen

Session Manager slaat de status van alle vensters op, en stelt u in staat ze te herstellen.

Waardering 4 van 5 sterren (486)
282.603 gebruikers

Legacy Test Pilot (Outdated)

The legacy Test Pilot program has been replaced, and this add-on is no longer useful. If you're interested in testing new features in Firefox please join the new program at https://testpilot.firefox.com

Waardering 4 van 5 sterren (71)
136.695 gebruikers

Toolbar Buttons Aanbevolen

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Waardering 4 van 5 sterren (328)
111.293 gebruikers

Hoxx VPN Proxy

Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.

Waardering 5 van 5 sterren (1.138)
93.954 gebruikers


UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Waardering 4 van 5 sterren (229)
91.763 gebruikers

Translate This!

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

Waardering 4 van 5 sterren (103)
85.911 gebruikers

Save as PDF Vereist herstart

Lets you download web pages as PDF in one click.

Waardering 2 van 5 sterren (133)
83.701 gebruikers

LeechBlock Vereist herstart Aanbevolen

LeechBlock is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

Waardering 5 van 5 sterren (625)
77.491 gebruikers

PDF Viewer(discontinued)


Waardering 4 van 5 sterren (272)
71.807 gebruikers

wmlbrowser Vereist herstart

Simulate WAP browsing by viewing WML (Wireless Markup Language) pages.

Waardering 4 van 5 sterren (32)
69.760 gebruikers

Add-on Compatibility Reporter

Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly.

Waardering 4 van 5 sterren (196)
63.362 gebruikers

Low Quality Flash Vereist herstart

Sets Flash objects to "Low Quality" to improve performance on slower platforms (i.e. older computers, netbooks, and Firefox Mobile).

Waardering 4 van 5 sterren (50)
57.235 gebruikers

Add-ons Manager Context Menu Vereist herstart Aanbevolen

Add more items to Add-ons Manager context menu.

Waardering 5 van 5 sterren (37)
52.745 gebruikers

ProfileSwitcher Vereist herstart

It adds some options to launch easily other profiles and the Profile Manager.

Waardering 4 van 5 sterren (90)
51.407 gebruikers

Copy Plain Text 2 Vereist herstart Aanbevolen

Kopieert geselecteerde tekst zonder opmaak.

Waardering 5 van 5 sterren (69)
43.632 gebruikers