by crewel

8 Add-ons in this Collection

Video DownloadHelper by mig

Rated 4 out of 5 stars 5,861 reviews

5,217,131 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 964 reviews

1,363,522 users

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

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 504 reviews

1,020,939 users

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

HackBar by Johan Adriaans, Pedro Laguna

Rated 4 out of 5 stars 41 reviews

36,513 users

Simple security audit / Penetration test tool.

SeoQuake SEO extension by SeoQuake Team

Rated 4 out of 5 stars 208 reviews

91,876 users

Seoquake is a Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization (SEO), social media optimization (SMO) and internet promotion. Seoquake allows to investigate many important SEO parameters.

BugMeNot by retailmenot

Rated 4 out of 5 stars 217 reviews

41,214 users

Bypass compulsory web registration with the context menu via

Multirow Bookmarks Toolbar by multirow

Rated 4 out of 5 stars 217 reviews

19,659 users

Makes your Bookmarks Toolbar appear in multiple rows.

For Firefox 4 use: Multirow Bookmarks Toolbar Plus, available here:

Screengrab by Andy M

Rated 4 out of 5 stars 587 reviews

26,428 users

Screengrab! saves webpages as images... but not for new versions of Firefox.

FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.

Therefore, Screengrab is EOL.

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