Add-ons

DownThemAll! by Nils Maier, Federico Parodi, others

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

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

— 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!

Dafizilla Table2Clipboard by dafizilla

Mozilla applications allow to select rows and columns from a table simply pressing Control key and picking rows/columns with left mouse button.
The selection can be copied to clipboard but the original table disposition is lost making ugly results wh...

Speed Start by Off JustOff

Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks

Linky by gemal

Linky will increase your power to handle links. ...

Eccellio Science - Search Engine by Info Eccellio

Eccellio Science is fully dedicated to students and researchers that want to obtain fresh results and are very focused on Science matters. Not just Wikipedia as it often happen, but accredited and specialized websites. Enjoy Eccellio Science!

DuckDuckGo en français, HTTPS et SSL by ScripTou

DuckDuckGo, recherche sécurisée (connexion SSL), HTTPS et résultats en français (fr-fr) sont les points principaux.

FilesTube by Filestube Search

FilesTube.com is a search engine designed to search files in various file sharing and uploading sites like rapidshare, megaupload, mediafire, hotfile, netload, filesonic, 4shared.

SweetSearch by Mark Moran

SweetSearch is A Search Engine for Students. It searches only trustworthy, credible Web sites, and avoids the clutter you find in other search engines. It is particularly useful for biographies, history, and other research assignments.

Collector's Note 2015-08: n'est plus dispo. Voyez les plugins de recherche en sciences de "Academic Add-Ons (Linux)" by Anubeon, ou ceux de SearchMaster https://addons.mozilla.org/en-US/firefox/user/SearchMaster/?page=3 , ou * On a parfois besoin d'afficher directement les ressources crédibles (càd non -fictionnelles) plutôt que la totalité des articles dispos sur une recherche :)

Edit Bookmark Plus by Kashif Iqbal Khan

Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.

Replacement of OpenBook addon

WikiLook by TestPilot, Rasha

Leading dictionary lookup add-on. Fast, light, open source tool that define words for you without need to open new tabs or windows. Wiktionary&Wikipedia.

Ctrl or Shift or Alt + RightMouseButton click. Now with thesaurus.

70+ languages supported!