Stack Apps is a question and answer site for apps, scripts, and development with the Stack Exchange API. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Not using Firefox?

Don't worry, Stack Alert is available for other browsers as well. Visit the appropriate page for your browser below:

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


The extension is written in JavaScript.

You can get the code here:
(look in the firefox/ folder for the Firefox-specific code)

share|improve this question
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 '12 at 21:46
@Wipqozn: I can reproduce your problem. I will look into this as soon as possible and let you know when it is fixed. – Nathan Osman Feb 3 '12 at 21:55
I can also confirm it's error in version 10 of Firefox. Hopefully its nothing major.. – Simon Sheehan Feb 3 '12 at 22:11
@GeorgeEdison Appreciate it. – Wipqozn Feb 3 '12 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. – Nathan Osman Feb 4 '12 at 3:52
@George will reinstalling the plugin fix it now? (assuming your last comment means an update was pushed) – Simon Sheehan Feb 4 '12 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. – Nathan Osman Feb 4 '12 at 4:24
@GeorgeEdison Great, thanks. – Wipqozn Feb 4 '12 at 14:41
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 '12 at 14:20
@slm: That's correct - FF 8.x is not supported by Stack Alert. – Nathan Osman Feb 17 '12 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. – Hamlet Feb 25 '12 at 22:35
@Christofian: I will look into it and let you know what the problem is. – Nathan Osman Feb 25 '12 at 22:49
@Christofian: That's definitely a bug. I'll look into it. – Nathan Osman Feb 26 '12 at 0:21
@GeorgeEdison the bug appears to be fixed now :) – Hamlet Mar 3 '12 at 16:45
@GeorgeEdison I'm still getting that bug (blank popup). – C. Ross Mar 15 '12 at 12:28

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;
share|improve this answer
yeah. also, it is in topbar. why not to add an option to put on extension bar, on bottom of FF? – kokbira May 28 '12 at 17:05
@kokbira, Luckily, it is open source, so you can update the plugin yourself :). – Abel Sep 24 '15 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).

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .