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Screenshot / Code Snippet

enter image description here


What better way to keep an eye on your inbox than with a Firefox add-on? Now you can tell at a glance how many items are in your inbox without worrying about having a tab open to a Stack Exchange site.


GPL version 3


You can install Stack Alert from the Mozilla add-on page here:


Any platform that runs Mozilla Firefox 8-10


I can be reached at [email protected].


The extension is written in JavaScript.

You can get the code here: https://github.com/nathan-osman/Stack-Alert
(look in the firefox/ folder for the Firefox-specific code)

  • this doesn't seem to work with the current version of Firefox. When I attempt to give it access to my account it just comes to a complete stop at the "Authorizing Application" page, and doesn't proceed any further. I tried closing firefox and clearing my cache/history/logging in, but it didn't resolve the problem. I was able to get it working in Chrome though.
    – Wipqozn
    Feb 3, 2012 at 21:46
  • 2
    @Wipqozn: I can reproduce your problem. I will look into this as soon as possible and let you know when it is fixed. Feb 3, 2012 at 21:55
  • I can also confirm it's error in version 10 of Firefox. Hopefully its nothing major.. Feb 3, 2012 at 22:11
  • 1
    @GeorgeEdison Appreciate it.
    – Wipqozn
    Feb 3, 2012 at 22:16
  • @Wipqozn: I have fixed the bug in v0.23 which should make its way to your machine within the next day or two. Feb 4, 2012 at 3:52
  • @George will reinstalling the plugin fix it now? (assuming your last comment means an update was pushed) Feb 4, 2012 at 4:06
  • @SimonSheehan: No. It has to be approved by Mozilla first. That may take from a few hours to a day or two. Feb 4, 2012 at 4:24
  • This addon wasn't working for me on FF 8.x but I recently upgraded to 10.0.1 and it just started working.
    – slm
    Feb 17, 2012 at 14:20
  • @slm: That's correct - FF 8.x is not supported by Stack Alert. Feb 17, 2012 at 19:03
  • It doesn't work in ff 10.0.2. It always says that "an error has occurred" after I authorize it, and then it doesn't display any new notifications. I'm using linux.
    – user6516
    Feb 25, 2012 at 22:35
  • @Christofian: I will look into it and let you know what the problem is. Feb 25, 2012 at 22:49
  • well, it does display a number one when there is a new notification, but when I click the button it says an error has occurred.
    – user6516
    Feb 25, 2012 at 22:58
  • 1
    @Christofian: That's definitely a bug. I'll look into it. Feb 26, 2012 at 0:21
  • 1
    @GeorgeEdison the bug appears to be fixed now :)
    – user6516
    Mar 3, 2012 at 16:45
  • 2
    @GeorgeEdison I'm still getting that bug (blank popup).
    – C. Ross
    Mar 15, 2012 at 12:28

2 Answers 2


In my opinion, the icon is too large at 24 x 24. Other Firefox toolbar icons are 16 x 16. I used the following CSS in my userChrome.css file to make it the correct size:

.stackalert-button *
    width: 24px !important;
    height: 16px !important;
  • 2
    yeah. also, it is in topbar. why not to add an option to put on extension bar, on bottom of FF?
    – kokbira
    May 28, 2012 at 17:05
  • @kokbira, Luckily, it is open source, so you can update the plugin yourself :).
    – Abel
    Sep 24, 2015 at 22:43

StackAlert not showing inbox

You can see that StackAlert only pops a grey-bordered shadowed white box on my screen, not showing my inbox as it should. This does not happen only when I have 0 unread items, and sometimes it errors with a message.

Any solution/workaround is highly appreciated, 'cause I don't want to switch tabs to see anything else than the number of unread inbox notifications.

Edit: This is the error I'm talking about here.SASAFF Error:

If I click the OK button, close and reopen the box, the error disappears leading, again, to the white box pictured above. I don't know what causes this problem (possible add-ons: ABP, Ghostery).

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