Enhance Firefox Multi-Monitor Support With Monitor Master

Martin Brinkmann
Apr 17, 2012
Updated • May 18, 2019
Firefox, Firefox add-ons

Working with multiple monitors can be a blessing. You have got more room to display programs, windows and information on the computer without having to juggle around or use virtual desktops for that purpose. But multi-monitor support is still lacking as it is not as common as one would think. The majority of computer users are working on single-monitor systems.

Microsoft's operating system Windows 8 came with improved multi-monitor support, and third party software is available for other operating systems to enhance multi-monitor support. Windows 10 introduced virtual desktops natively.

Update: Multi-Monitor support is no longer available. The legacy extension was removed from Mozilla's Add-ons repository following the release of Firefox 57. Firefox 57 dropped legacy extension support.

A comparable extension is not available, unfortunately, at the time of writing. End

Firefox Multi-Monitor Support

Monitor Master was an extension for the Firefox web browser that improved multi-monitor support in several ways. The extension detected multi-monitor systems automatically and added a toolbar item to the browser that depicted the monitor setup.

You could then use the icons to move a browser window or individual tab to another monitor, or expand a browser or tab to it. Moving was simplified this way as you would otherwise have to drag and drop the window or tab to the other monitor. Now the same operation is handled with a single click of the mouse button.

Extending worked by finding the largest available area across the selected monitors, and displaying the browser window in it.

The Firefox extension furthermore added options to the tab right-click context menu that could be used to move the select tab to another connected monitor. In addition, links could also be added to the general context menu to open website links on a different monitor.

Both context menu options were available by default, and could be disabled in the add-ons manager. Here it was also possible to configure the browser to select the new tab after moving it to a new monitor, and to prevent that it is combined with an existing Firefox window on that monitor. Tabs that were moved to a new monitor were by default added to existing Firefox windows on that monitor.

The developer of Multi Monitor planned to add a manual monitor selection option after installation to override the default search algorithm. Unix and AMD Eyefinity users were encouraged to read through the troubleshooting section on the add-on page for information on how to overcome issues on their systems.

Closing Words

Monitor Master could improve the workflow on multi-monitor systems. Firefox users who were working with multiple monitors could use it to improve their productivity.

software image
Author Rating
5 based on 2 votes
Software Name
Monitor Master
Software Category

Tutorials & Tips

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  1. Oller Mauser said on May 18, 2019 at 12:40 pm

    Could it be, that the Add-On has been removed? Following your link I and up on the “Oops! We can’t find that page”-page of Firefox Addons.

    Is there any current alternative?

    1. Martin Brinkmann said on May 18, 2019 at 2:42 pm

      Hi, yes Mozilla purged all legacy extensions from Mozilla AMO. I updated the review to reflect that; there is no alternative available at the moment, unfortunately.

  2. Tom said on April 19, 2012 at 12:24 am

    Well I have been following this blog for 5 years and when I found it, it was one of my primary source of first class Windows tips & tricks for years. About 1-2 years from now I started to feel that it’s changing to a still good IT news site but with less content that I am interested of. To be honest, today the content of the site is not as unique (compared to similar IT technical portals) as it was before, at least in my opinion. It means I am skipping much more posts these days than I did before. But surely it’s about personal taste and I understand you have to keep up with the times and change the kind of the content to maximize the visitors count. Anyway, I still regard this site high and don’t plan to leave completly anytime soon… :)

  3. Tom said on April 18, 2012 at 11:04 pm

    Want to give it a try indeed. This is exactly what I was looking for! Thank you Martin :)
    I’d love to see more really useful posts of this kind as it was in the old days… More G(eek)hacks instead of posts about mobile gadgets, social networking, stupid games and internet services :P

    1. Martin Brinkmann said on April 18, 2012 at 11:28 pm

      Tom, I’m trying to find a good balance. It is getting difficulty with 12k posts in the bank, but I try my best to do more of this geekier stuff. If you have any thoughts on this, let me know please.

  4. Paul(us) said on April 17, 2012 at 4:30 pm

    Great Firefox add-on ferry handy much handier than moving the browser by hand.

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