Firefox 3.0.1 and Your Add-ons Not Working

Has Firefox 3.0.1 given you trouble?  Well it sound like you might want to contact the extension’s author to make sure thy are using the right compatibility range. Once again Basil does a great job at explaining this in a way that should make sense to us all.

When add-on authors publish their add-on they declare the compatibility range for an add-on. It typically looks like “2.0 to 3.0.*” – meaning that at minimum, this add-on requires Firefox 2.0 and works with any maintenance release of Firefox 3.0. (End of the compatibility range is also called the maxVersion).

Some add-on authors have erroneously used “3.0″ as their maxVersion so when users with these add-ons upgrade from Firefox 3.0 to Firefox 3.0.1, the add-on gets disabled. We encourage these add-on authors to use “3.0.*” as their maxVersion.

So shoot your favorite extension authors an e-mail and ask them to get this fixed, or check to see if this might be the problem.  Another suggestion for people with lots of problems would be to try running Firefox with a new profile or Safe Mode.  In Safe Mode, you can reset some settings or disable extensions and themes that might be the source of the issue. By comparing Firefox behavior in normal mode to its behavior in Safe Mode with various items disabled, you may be able to diagnose issues.

View Comments to “Firefox 3.0.1 and Your Add-ons Not Working”

  1. earle.allen Jul 18, 2008 at 4:03 pm #

    personally,I think you need to install Nightly Tester Tools extension to force compatibility

  2. LouCypher Jul 18, 2008 at 8:24 pm #

    Ext devs should read https://addons.mozilla.org/pages/appversions before submitting their addons to AMO

  3. Daniel Jul 19, 2008 at 7:07 am #

    If you wish to update Firefox whilst keeping all of your add-ons intact, there is a fairly easy fix.

    Note: This will disable add-on compatibility checking.

    1. Go to about:config via your location bar and accept the warning.
    2. Right-click anywhere in the window and select New->Boolean.
    3. Set the name to extensions.Compatibility and click OK.
    4. Set the value to false and click OK.
    5. Restart your browser.

    You may now update Firefox without risking any of your add-ons becoming disabled. An information bar will appear in your add-ons window, notifying you that “Add-on compatibility checking is disabled”. You may click ‘Enable’ here at any time to undo these changes.

    You will now be able to install add-ons designed for any version of Firefox, the Mozilla add-ons website will still restrict you to Firefox 3.*.* add-ons however. I can almost guarantee you that any add-ons working within Firefox 3.0 will work flawlessly with Firefox 3.0.1 since it is mainly a security update, and on the add-on side of things it’s basically just a version number which the developers need to update. However, use Firefox 2 add-ons at your own risk!

  4. Jack Jul 21, 2008 at 11:37 pm #

    1. Go to about:config via your location bar and accept the warning.

    Where is that on FIREFOX? Help!

  5. earle.allen Jul 22, 2008 at 11:54 am #

    Jack [ and others ]
    the “location bar” is the search bar at the top of your browser
    enter:
    about:config
    this is the “registry” for Firefox
    BE CAREFUL HERE JUST AS YOU WOULD BE IN WINDOWS REGISTRY AND FOR THE SAME EXACT REASONS

  6. Pamela K Keyser Aug 19, 2008 at 12:47 pm #

    Earle—Thank you for your in-put. I have done the above, but still none of my add-on’s work. I am thinking of uninstalling everything like shockwave, and putting it back to see if that helps… on ‘firfox cute-theme, I have added it, clicked install and restarted firefox, but it comes back with default theme.

    Any input is appreciated.
    Thanks,
    Kua

  7. Nahriel Aug 25, 2008 at 5:04 pm #

    I tried that too earle and it didn’t change anything sadly but thank you for trying =)

    HOWEVER! I HAVE FOUND A WAY TO FIX IT!

    I kept searching and came across someone asking the same question and sadly they didn’t get any help for it but then replied with that they had found a way to fix it.

    “That didn’t help much, sorry. But thanks anyway.

    However I did find a way to solver the problem. I deleted (renamed) the folder staged-xpis in Profiles\*stuff\extensions and now everything works fine again. Hooray!”

    So fist I was like oh my god wait what?? What did you do?! Come back! D;

    After flailing around for about 3 mins I sat down and started to figure this out. I had heard a few times about a firefox profile during my search for a fix and had no idea what it was or where to find it. So I looked up “firefox profile?” and found this page where it tells you how to find it on your computer from the firefox site.

    http://support.mozilla.com/en-US/kb/Profiles#How_to_find_your_profile

    Just click “how to find your profile” in the table of contents. This will take you to the part of the page where you can read how to find it depending on what operating system you’re using. After you’ve read this all you need to do is find the profile on your computer and then find the folder for “extensions”.

    Once you’ve found that folder click on one of the folders inside it and look for the folder named “staged-xpis”. Right click on it and rename the folder. I renamed it “renamed” in case I had to find it again to change it if something went wrong. After you’ve done this simply restart firefox and it will tell you that you either have new add-ons or if you haven’t been trying and just wanted to get a theme go and re-download the theme and follow the restart thing and it should actually work now.

    So this is what you do again in steps.

    1. Click the link I gave you and see how to find your profile if you don’t already know.

    2. Find your profile and locate the “extensions” folder.

    3. Click on a folder within the “extensions” folder and locate the “staged-xpis” folder.

    4. Rename the “staged-xpis” folder. example rename it with “renamed”

    5. Restart firefox and then re-download theme and complete steps.

    6. Be happy you didn’t chuck your pc out the window into rush hour traffic before cuz now it’s fixed.

    It’s really quite ironic and funny in a f%#@ me sorta way lol cuz the fix is really so simple and yet was driving you and me crazy. xD

    I hope this has helped everyone out and that you’ll be able to get yours fixed up nicely like I did =D

  8. Nahriel Jan 06, 2010 at 7:12 am #

    I tried that too earle and it didn't change anything sadly but thank you for trying =)

    HOWEVER! I HAVE FOUND A WAY TO FIX IT!

    I kept searching and came across someone asking the same question and sadly they didn't get any help for it but then replied with that they had found a way to fix it.

    “That didn't help much, sorry. But thanks anyway.

    However I did find a way to solver the problem. I deleted (renamed) the folder staged-xpis in Profiles*stuffextensions and now everything works fine again. Hooray!”

    So fist I was like oh my god wait what?? What did you do?! Come back! D;

    After flailing around for about 3 mins I sat down and started to figure this out. I had heard a few times about a firefox profile during my search for a fix and had no idea what it was or where to find it. So I looked up “firefox profile?” and found this page where it tells you how to find it on your computer from the firefox site.

    http://support.mozilla.com/en-US/kb/Profiles#Ho...

    Just click “how to find your profile” in the table of contents. This will take you to the part of the page where you can read how to find it depending on what operating system you're using. After you've read this all you need to do is find the profile on your computer and then find the folder for “extensions”.

    Once you've found that folder click on one of the folders inside it and look for the folder named “staged-xpis”. Right click on it and rename the folder. I renamed it “renamed” in case I had to find it again to change it if something went wrong. After you've done this simply restart firefox and it will tell you that you either have new add-ons or if you haven't been trying and just wanted to get a theme go and re-download the theme and follow the restart thing and it should actually work now.

    So this is what you do again in steps.

    1. Click the link I gave you and see how to find your profile if you don't already know.

    2. Find your profile and locate the “extensions” folder.

    3. Click on a folder within the “extensions” folder and locate the “staged-xpis” folder.

    4. Rename the “staged-xpis” folder. example rename it with “renamed”

    5. Restart firefox and then re-download theme and complete steps.

    6. Be happy you didn't chuck your pc out the window into rush hour traffic before cuz now it's fixed.

    It's really quite ironic and funny in a f%#@ me sorta way lol cuz the fix is really so simple and yet was driving you and me crazy. xD

    I hope this has helped everyone out and that you'll be able to get yours fixed up nicely like I did =D

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