Error 404 Wayback Machine
Checks every 404 pages. If an archive exists in archive.org, a banner is displayed to open this archive.
220 users
defaultSortForReddit
This add-on will allow Reddit users to select which option they want to use to sort content when going to the home page, or individual subreddits. By default, it will sort to the "new" option. Designed to work with reddit.com, not old reddit.
218 users
Royal Spanish Academy Dictionary (Search Provider)
This extension installs the Royal Spanish Academy dictionary search engine
217 users
Available Reads
See your local library's ebook availability right from Goodreads! This extension adds a simple listing of copies available from Overdrive/Libby on each Goodreads review page and in your Goodreads bookshelf.
217 users
Search in subtitles on YouTube
Search the subtitles of YouTube videos and jump to the moment they are shown. It is like Ctrl+F, but for subtitles.
216 users
Word Highlighter
Create a list of words and phrases you are interested in. See them highlighted on every page you visit.
214 users
Quick Tabs Ported
Ported version from the Chrome extension Quick Tabs, with a few small tweaks. Their description reads: A keyboard centric most recently used (MRU) ordered tab list plugin with search and switch functionality inspired by IntelliJ IDEA
213 users
SYNCRo Omegle IP Location
Displays the IP and the location of the stranger in any video chat. And a lot of other tweaks!!
212 users
Paste n' Go
Adds an item to your right-click menu for text fields to paste the clipboard contents and submit the form.
210 users
Proper Menubar for Firefox
Add the best menu bar to get easy and fast access to all your useful browser options and Google products!
209 users
eBay™ Popularity Sort
A firefox extension that sorts the eBay™ search results by popularity (number of times sold).
208 users
