7 Awesome Add-Ons That Only Work With Firefox 4

Matt Smith 01-04-2011

<firstimage=”//”>addons for firefox 4 betaFirefox has long been the darling of geeks everywhere, but its popularity has waned lately, mostly due to competition from Google’s Chrome browser. Firefox, while stable and practical, simply wasn’t as quick as Chrome. Some, such as myself, switched.


Now Firefox 4 is out, and the browser has been substantially redesigned to improve performance and offer a better interface. The add-on ecosystem always changes when a new browser version is released, and Firefox 4 is no different. Many older add-ons are broken – at least for now. Fortunately, there are a few new or revised add-ons already available.

Movable Firefox Button 1.3 [No Longer Available]

addons for firefox 4 beta

This add-on makes the Firefox button in Firefox 4 movable. By default, the button hangs out in the upper left hand corner, on the same part of the interface used by tabs. This add-on lets you move it to someplace else, such as alongside the search bar, which frees up more room for tabs to appear.

FabTabs 1.4 [No Longer Available]

firefox 4 addons

The concept behind FabTabs is simple – make tabs visually distinct. That way, you’ll be able to tell the sites you have open in your tabs at a glance, without reading any text. This is great for users who like to open lots of tabs, as having large numbers of tabs open forces each tab to become smaller, which soon makes the text useless.


Fab Tab accomplishes this by taking a screenshot of the website you’re viewing and working some math wizardry to find the most prominent color, which it then applies to the corresponding tab. Although this sounds easy to fool, it worked perfectly in my usage. It even picked red for CNN, despite the fact that most of the website is white.

Easy App Tabs [No Longer Available]

One of the new features in Firefox is the “app tab.” This is a small tab that is used to mark websites, like Facebook, that you want to use but don’t need to devote an entire tab to. By default, app tabs are placed by right clicking and then selecting Pin as App Tab from the menu, but Easy App Tabs lets you do the same by simply double-clicking a tab. It’s quicker and easier.

Vertical Toolbar 0.2 [No Longer Available]

firefox 4 addons

Opera I Switched From Chrome to Opera and I’m Never Going Back Any browser works. There's only one reason to pick one over another: it's more in line with how you like to browse the web. And you might prefer Opera, too. Read More users might like this one, has the purpose of Vertical Toolbar is to add, well, a vertical toolbar – which looks quite a lot like the one Opera has when you open the “panels” toolbar. Firefox isn’t Opera, though, so there isn’t quite as much stuff to put on the toolbar by default. You gain access to your bookmarks, browsing history and download manager at the top, while at the bottom you’ll find buttons for full screen view, printing and refreshing the page.


Things get more interesting if you open up the Firefox button, go to Options, and then go to Toolbar Layout. There are a number of toolbar functions listed here that aren’t included by default but can be added easily. If you have installed the Movable Firefox Button 1.3 add-on you can place your Firefox button on the vertical toolbar as well.

Tab Badge 1.2 [No Longer Available]

firefox 4 addons

As websites command more of our attention and become more like apps, notifications become more important. A program has no problem telling a user when something has happened, but that sort of behavior isn’t common from a web browser.

Tab Badge seeks to resolve this issue by adding a small, bright-red visual notification on open tabs of social networking and email sites. This add-on works with Twitter, Facebook, Gmail and more.


Instant Preview 3

This add-on is straight from Mozilla Labs, which means its a feature that didn’t quite make it into the full web browser, but is being worked on and considered for future use. Once installed, pages that show up in the search bar when you are typing will begin to load automatically. Once you click on them, they’re already partially or completely loaded, creating a web experience that feels smoother. However, this behavior will only work with websites you have visited before, which is the add-on’s one downside.

Custom Tab Width 1.0.1 [No Longer Available]

addons for firefox 4 beta

Another simple but useful interface tweak, Custom Tab Width lets you determine how wide or small a tab can be. By default, Firefox limits tabs to a maximum width of 250 and a minimum width of 100. If you’re a tab heavy user, though, you can use this add-on to reduce that minimum width to whatever you’re comfortable with. This is a great add-on to use with FabTabs.


Usually, this is the part where I point out that there are lots of add-ons available, I can’t possibly cover them all, and I’ve selected those I’ve found most useful. To some extent, that applies. But the list of add-ons for Firefox 4 is small at the moment, so the 7 listed here represents about 25% of all Firefox 4 add-ons currently available!


Of course, folks will be quick to jump on the bandwagon, so the list should expand rapidly. Mozilla has a special “Only for Firefox 4” [Broken URL Removed] section set up on their add-on page, so you might want to bookmark it and check back in a few weeks to see the new add-ons that have been released.

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  1. FF4sux
    April 11, 2011 at 7:47 pm

    I upgraded from 3.6.16 to 4 on Win XP SP3. I don't even get this new fancy-schmancy UI of FF4. To compound that, FF4 no longer shows a status bar. My FF 3.6.16 had a gazillion xpi-s showing in the status bar - now I don't know where to find them?

    Eye candy for the sake of eye candy *sucks*. Mozilla seem to have done a 'Vista' with Firefox, instead of improving it!

  2. PauldeWouters
    April 9, 2011 at 6:09 pm

    Firefox still has the same issue as always, it eats up all the RAM, then crashes my PC

  3. snapscape
    April 9, 2011 at 5:56 pm

    Unfortunetly, FabTabs doesn't work so well on Mac

  4. Rclancy914
    April 5, 2011 at 9:02 pm

    Home Dash is by far the best FF4 only app!!!

  5. smljackson
    April 4, 2011 at 9:00 am

    Awesome ? .. I doubt it....

  6. Ben
    April 2, 2011 at 4:45 pm

    I think Stratiform [Broken Link Removed] is the best. It allows you change almost every aspect of Firefox's UI.
    Check out this screenshot to see what I did with that addon: [Broken Link Removed]

  7. Ben
    April 2, 2011 at 2:45 pm

    I think Stratiform ( is the best. It allows you change almost every aspect of Firefox's UI.
    Check out this screenshot to see what I did with that addon: [Broken Link Removed]

  8. Mango
    April 2, 2011 at 3:48 am

    What I'd like to know, is how did you get that "firefox" icon to be there? In the FF4 I have installed, it says the word "firefox", and displays no icon. I like the idea of the icon better, how can I change it?

    • M.S. Smith
      April 2, 2011 at 4:31 am

      When you install the addon and move the Firefox button, it should just change automatically into the smaller icon.

    • Mango
      April 2, 2011 at 11:37 pm

      So looks like you have to pay some for that movable firefox button.. (?) I don't see any install button, just a "contribute". I'm not really fussed about moving it anywhere, but would like to have it iconized instead of text.. takes up less room..

      • M.S. Smith
        April 3, 2011 at 2:11 am

        You shouldn't need to pay. I didn't have to shell out anything for it.

        • Mango
          April 4, 2011 at 2:32 am

          Thanks.. My bad.. I was unaware that I had javascript disabled for, this is what caused my to not see the "add to firefox" button.. After install, the icon appears in place of the text.. neat!

  9. ???? ?????
    April 1, 2011 at 9:51 pm

    Unfortunatly, it only edit the look of the browser. Nothing so special then

    • video marketing
      April 4, 2011 at 8:58 am

      yes.... same 2 you edit the look of the browser!

  10. Heyoka1
    April 1, 2011 at 7:01 pm

    :))) This is great: at the end of the article about add-ons for Firefox you find an Opera ad !!! YES, that's the browser I use and like the most! :)

    • Pauly
      April 8, 2011 at 8:09 pm

      OMG my newest BFF LOL

  11. eyescovered
    April 1, 2011 at 5:45 pm

    Is there an add-on yet that duplicates Opera's tab stacking feature?

    • Jones
      April 1, 2011 at 10:52 pm

      Opera is a shocker, a lame dog if ever i saw one. End of conversation.

      • the mainliner
        April 2, 2011 at 2:43 pm

        Fan-boy in lame fingers in ears lalala attempt to win argument in twelve year old style shocker.

      • Pauly
        April 8, 2011 at 8:09 pm

        Jones is a woof woof shuffle shuffle aka a lame dog. Total SHOCKER!!

        If you're going to make a comment of that sort, back it up with reasons. Or wait til you're maybe 12 and 3/7 years old.

        For my money Opera beats just about everything out there. While FF4 was noticeably faster when installed, 3 weeks down the track and it is slow slow slow. Considering reinstalling 3.8ish version to get speed back up there again. But why do I use FF at all? Well some sites don't conform to W3 standards and I have to use it instead of Opera. Not many, but enough to make life a pain.