Get all CSS styles of selected text
Quickly and easily switch between popular user-agent strings.
Spoofs User-Agent strings of your browser
Create a QR code of the selected text, current url or hyperlink. Also possible to create a QR Code from free text within Firefox. Now with UTF8 support.
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions. Beta builds on versions page!
Add-on to display GitHub code in tree format
The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes". [ not compatible with Firefox / Thunderbird 57+ ]
It is a universal night mode for the entire Internet. It uses a special algorithm to automatically change the colors of the websites you visit into dark mode so that you can browse without straining your eyes, especially at night.
Automatically sets all preferences for Firefox addon developer production environment.
NOTE REGARDING COMPATIBILITY WITH FIREFOX QUANTUM: Due to the major changes in Firefox in version 57, I've started to rewrite CookieSwap but I don't it being completed before Jan 2018. Sorry for the delay! -Steve
This extension is a replacement of Firefox official error page, which adds some useful tools to aid your troubleshooting. The tools include: - Google Cache (view the page cached by Google) - Coralize (use Coral CDN proxy to connect again) - Wayback (view an earlier version of this page) - Ping (use a server to ping the target server) - Trace (trace the network route from you to the server) - Whois (look up who owns the website) - Proxify (use your custom web proxy to connect)