Finds HTML elements matching chosen CSS selector(s) or XPath expression
Collector's Note You can search using css selectors or xpath. Very usefull for JQuery/Greasemonkey development
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.
Collector's Note Excelent replacement for Print Screen, several options to capture screen shots
Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.
Collector's Note Awsome gmail scripts
Collector's Note Syntax highlight for firebug
Replace the standard menu bar with a tiny menu popup.
Collector's Note I usually merge my menu bar and navigation bar to get more browser space. This addon gives me even more space for the navigation bar.
Note from Mozilla: This add-on has been discontinued. Try Roomy Bookmarks Toolbar instead.
Collector's Note Lets me fit more stuff into my bookmarks bar
Add useful extra features to Google Reader, like feed favicons, inline article previews, and unread counts in your browser tab with Better GReader.
Collector's Note Inline preview, favicon with the number of unread items. A must for google reader users
An extension that allows for the use of dynamic commands in Firefox.
A maintained version can be installed via: https://bitbucket.org/satyr/ubiquity/downloads/tip.xpi
Collector's Note Recently discovered and it's already becoming indispensable
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