Extensions by Name
Collapse and expand quotes. Please see the extension homepage for...
Rai.tv live channels, vod and replay contents w/o *light (Silverlight/Moonlight)
Pick any color of the...
This extension switches your themes at random.
Adds a "Print" option to the Right-Click context menu.
Re-Pagination No Restart
See more search results etc. on one page, concatenating several pages together...
Reader No Restart
Reader is the ultimate Reader tool for Firefox.
This wizard creates an XPI that rebrands Firefox, SeaMonkey or Thunderbird. You can change the brand name as well as the brand images and icons.
Reddit History No Restart
Keeps track of all the submissions you viewed on Reddit
Redirect Bypasser No Restart
Avoid redirects and has direct access to the sites you want to visit.
Control what gets sent as the HTTP Referer on a per-site basis.
"Relaxed" is a HTML validator which validates HTML documents using it's own schema definitions written in Relax NG with embedded Schematron patterns.
Reload Skip Cache Button No Restart
Reload page without using content stored in the browser cache to make sure you get any updates.
Workaround for Bug 351163 (Thunderbird bypasses proxy.pac for first connection).
The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...
ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.
Remote Developer Tools Server No Restart
This addon provides options for starting the developer tools server. It is especially valuable in XULRunner Apps where there is no UI to start the server.
NOTE: This addon is not mandatory in Firefox or Thunderbird, as support is built in.
Remote XUL Manager No Restart
Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.
Replace quotation marks from " ", ' ' to „ ” , ‚’ in text areas.
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.