Extensions by Name
Move your mouse over a folder on the Bookmarks Toolbar to open it immediately, rather than having to click.
MouseoverDictionary Requires Restart
Mouser Part Search Requires Restart
The Mouser Part Search Add-on delivers part information and availability to your browser when you need it. Simply highlight any part number or keyword on any site and instantly preview search results and part details without leaving the current site.
MouseZoom Requires Restart
Zoom with the mouse...
Movable Titlebar Buttons allows you to move the titlebar buttons on Windows 10 (only).
MovableReload29 Requires Restart
You can customize the place of reload button on Firefox29 and above.
Move active tab to the left end, so recent tabs cluster to the left side.
Warning: This will unpin your pinned tabs, don't use it if you want to keep the pinned tabs
Move Tabs Requires Restart
Define your own shortcuts to move the tabs into firefox.
You can move the tabs along the tab bar and at both ends.
You can move a tab to other window very easily.
Move Toolbar Requires Restart
Quick access to millions of real estate listings from move.com!
All the information you need to know about any movie.
Get the release date, short synopses, movie links and ratings from Rotten Tomatoes, IMDB and Meta Critic.
Movie Flix "Own It!" Requires Restart
Ever add a movie to your Netflix queue and then later find out you already own it? This extension places a "Own It!" button on the Netflix movie details page, and allows you to mark movies in Netflix that you own.
Add a right-click context menu action for links & selected text to get movies & TV shows reviews, trailers, subtitles, torrents & direct watch it.
MovieSearch Requires Restart
This is quite simple add-on which allows you to search for movie title, actor etc. on imdb.com or filmweb.pl (Polish site about movies) by selecting the text and choosing proper option from context menu (right mouse click).
MovimentoFm Requires Restart
Moxilnet Requires Restart
Moxilnet (MOzilla+firefoX+movILNET) is a browser toolbar that allows you to send SMS text messages to movilnet's cellphones in Venezuela.
Easily schedule Moxtra Meets from your Google Calendar
This extension is a moz: protocol handler for moz://a URLs. After installing it, try going to moz://a. Or try moz://a/firefox. The extension's source code, and its list of URL mappings, is available at https://github.com/mozilla/moz-handler/.