by PeterPerlich

110 Add-ons in this Collection

Adblock Plus by Eyeo

Rated 5 out of 5 stars 7,048 reviews

12,756,252 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Video DownloadHelper by mig

Rated 4 out of 5 stars 11,448 reviews

3,480,311 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 2,684 reviews

707,054 users

The first and only download manager/accelerator built inside Firefox!

Web Developer by chrispederick

Rated 4 out of 5 stars 465 reviews

268,381 users

The Web Developer extension adds various web developer tools to the browser.

Flagfox by Dave G

Rated 5 out of 5 stars 827 reviews

255,139 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 422 reviews

176,704 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Xmarks Sync by Xmarks Inc.

Rated 3 out of 5 stars 3,207 reviews

96,964 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

German Dictionary by KaiRo

Rated 4 out of 5 stars 56 reviews

393,032 users

German Dictionary (new Orthography) for spellchecking in Mozilla products

Spanish (Spain) Dictionary by tnarik, RickieES

Rated 4 out of 5 stars 131 reviews

236,738 users

Spanish/Spain Dictionary

Clippings by AE Creations

Rated 4 out of 5 stars 250 reviews

35,823 users

Save frequently-entered text for pasting later.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 315 reviews

158,759 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,973 reviews

458,005 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

PDF Download by Nitro PDF Software

Download Now


Rated 2 out of 5 stars 665 reviews

19,819 users

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Dizionario italiano by flod

Rated 4 out of 5 stars 60 reviews

131,510 users

Italian spellchecking dictionary

Element Hiding Helper for Adblock Plus by Felix Dahlke

Rated 5 out of 5 stars 467 reviews

253,974 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
Results 115 of 110

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