15 Add-ons in this Collection
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).
DownThemAll! by Nils Maier, Federico Parodi, others
The first and only download manager/accelerator built inside Firefox!
Greasemonkey by Anthony Lieuallen, Aaron Boodman, others
The Web Developer extension adds various web developer tools to the browser.
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!
Tired of going to History -> Recently Closed Tabs just to undo a closed tab? Then this extension is for you!
This extension allows you to undo closed tabs via a toolbar button or the right-click context menu.
Allows you to hide almost anything via context menu 'Remove Object'.
Signatures for Gmail, Google Mail, Yahoo Mail
Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.
Add a compact menu button to the navigation toolbar, and hide the menu bar.
Display Wolfram Alpha results in Google searches.
No need to switch search engines when you can use both at once!
An extension that allows for the use of dynamic commands in Firefox.
Easy shrink any long URL or link in the page to something you can email or Twitter using the TinyUrl service with a single click in your browser.
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