Extensions by Name

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Unwrap Text

(1) Unwraps a multi-line URL and opens it in a new tab.

(2) Unwraps a multi-line street address and opens it in Google maps...

Rated 5 out of 5 stars (16)
368 users

UnZIP

UnZIP any zip files by Firefox itself.

Rated 4 out of 5 stars (2)
3,013 users

UOL Jogos Enhancer

Adiciona novas funcionalidades ao forum

Not yet rated
113 users

uPassword

uPassword is a password generator, it helps you to create and manage passwords for different web sites, bank account, or electric devices.

Rated 5 out of 5 stars (4)
152 users

Update Bookmark

Allows bookmark properties to be set to the current page's properties or to clipboard text quickly via the context menu.

Rated 4 out of 5 stars (26)
237 users

Update Channel Selector

Allows you to change the application update channel.

Changing only the channel with Gecko 12 became insufficient because it's "*.mar" related security landings.

Rated 3 out of 5 stars (10)
12,105 users

Update Notifier

Note from Mozilla: This add-on has been discontinued. Try Add-on Update Checker instead.

Notifies you when updates are available for your extensions and themes.

Rated 5 out of 5 stars (161)
27,079 users

Update Scanner Featured

Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.

Rated 4 out of 5 stars (145)
36,730 users

UpdateBookmark

This addon adds an "Update" menu entry to the bookmark context menu, that will change this bookmark's destination URL to the currently opened page.

Rated 4 out of 5 stars (9)
415 users

Updated Ad Blocker for Firefox 11+

It blocks ads on the web pages you visit including Youtube, Hulu, TwitchTV/JustinTV, most Major News Sites(cnn/fox/nbc/msnbc) and many more. Ads from services like Google AdSense Yahoo DoubleClick It also blocks the GoogleAnalytics tracking script.

Rated 3 out of 5 stars (40)
232,681 users

UpFotoOrkut Image

UpFotoOrkut foi baseado em um script de Elsio Antunes para hospedar imagens no orkut!

Rated 1 out of 5 stars (1)
1 user

Upit right-click

You can now easily upload images from the web to http://upit.biz with a single right click.

Not yet rated
1 user

UPIT.NO

En addon laget for http://upit.no/.
Denne addonen gjør at du kan laste opp bilder direkte til upit.no med et enkelt høyreklikk, fra hvor som helst på nettet.
Tjenesten og addonen er helt gratis!

Not yet rated
1 user

Uplike No Restart

Bookmark your life !

Bookmark all your favorites websites on the Internet.

Uplike is made for organize and share easily all your bookmarks, from everywhere !

Rated 5 out of 5 stars (1)
46 users

Upload Image Addon | Xum

Upload Photo Simply on Http://www.xum.ir Using API

Not yet rated
25 users

Upload to imgxc

This add-on allows you to upload images to Image Exchange (imgxc) by simply right-clicking on any image and selecting "Upload to imgxc"... its as simple as that!

Rated 5 out of 5 stars (1)
1 user

UploadFox - Right Click Uploader

UploadFox - Right click Image uploading and resizing, made simple!

Not yet rated
15 users

UploadPie Uploader

Allows you to upload images to UploadPie with just two clicks.

Not yet rated
115 users

UploadProgress

Displays the progress of the current uploads. Useful for sites that does not shows the upload progress like youtube.

Rated 4 out of 5 stars (35)
3,178 users

Uploadr for Flickr

Upload web images to flickr.

Rated 4 out of 5 stars (17)
68 users