Disable "Checking Your Add-ons" When Launching Firefox

Currently in our enterprize enviroment we have an older version of Firefox that we can not upgrade (long story).
When a user first launches Firefox, the first windows says "Checking Your Add-on's"
How can I get Firefox to not have this pop up?
Note: This is on a Citrix Provisioning Server, I have a default profile that when people launches Firefox all the certs etc gets loaded. Is there a way in the default profile to configure not to check Add-On's ?

You could set lastVersion prefs to the value of that new Firefox version to prevent such a check.
<pre><nowiki>user_pref("extensions.lastAppVersion", "32.0");
user_pref("extensions.lastPlatformVersion", "32.0");
</nowiki></pre>
You could do that via user.js file in the defaults\pref folder in the Firefox program folder to initialize new profiles or via a mozilla.cfg file for all users (use pref() instead of user_pref()).
These functions can be used in the mozilla.cfg file:
defaultPref(); // set new default value
pref(); // set pref, allow changes in current session
lockPref(); // lock pref, disallow changes
See:
*http://kb.mozillazine.org/Locking_preferences
*http://mike.kaply.com/2012/03/16/customizing-firefox-autoconfig-files/

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Is there any way to disable "Checking Your Add-ons" window that comes when user starts Firefox after update for the first time?

we have over 1500 firefox users and its very confusing to them if after update they start their Firefox and this "Checking Your Add-ons" window comes.
It would be much appreciated if it can somehow skipped this or do it silently.

Unfortunately this link does not help.
We currently have 3.6.x versions of Firefox in most computers, and if i do a silent install via sccm to version 12, then if user starts the new firefox for the first time, it checks addons, like java quick starter and browsing protection (f-secure) etc. Second time when they start firefox, it starts normally.
My question is - is there some way to avoid this first run addon compability checking?
I've tried numerous preferences in mozilla.cfg, nothing helps so far.

I downloaded 11.0 and it's hanging on install at "checking your add-ons".

I downloaded 11.0 to update my software and it won't respond at all.
I can't uninstall, can't do anything else.
I have add-ons that I suspect aren't supported, but how do I get to them to disable if I can't get the program to install?
Safemode startup isn't doing anything, but then it hangs before the "checking your add-ons" screen.
Can't get to the menu bar to do anything else.

What you can do is to go into your profile ([https://support.mozilla.org/en-US/kb/Profiles#w_finding-your-profile-without-opening-firefox https://support.mozilla.org/en-US/kb/Profiles#w_finding-your-profile-without-opening-firefox] can help you find it) and delete or rename these files:
extensions.ini
extensions.cache
extensions.rdf
Once you do that, try opening Firefox again.

On startup, Firfox checks for add on changes and then goes to a Firefox page. I have selected to open in a blank page and I have disabled checking for add ons. This does not help. How do I fix this?

As above. I am not an expert and do not know how I can give more info. Please ask what you need to know further. Thanks.

See:
*http://kb.mozillazine.org/Preferences_not_saved

I cannot right click without the browser freezing for at least 3-5 seconds. I disabled add-ons and reset firefox - same issue.

I can't right click anywhere in the browser without the browser freezing for at least 3-5 seconds.
I disabled all the add-ons.
I reset firefox.
issue is still there.

Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If the new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Suppress add-on dialog when launching Firefox

When launching Firefox with new extensions installed, it comes up with a dialog box telling of the new extensions. I'd like a way to completely suppress this for our users, as we (in IT dept) already know it was installed and don't need our users to see anything about it.
Is there a way to completely suppress the add-on dialog so it doesn't come up at all? Maybe a command-line switch, javascript extension, or setting in an ini file?
Target is Debian and Ubuntu Linux with Firefox 3.6.
thanks!

This is stupid. Not only is the way to install plugins now basically a hack (unzipping an xpi file into a dir? really?), but getting rid of the notification is as well. I came up with three ways around this problem: a) install all plugins right after a fresh install, before any profile dirs are created, b) remove all profile directories, or c) edit the prefs.js file for the desired profile. Option "a" is obviously easiest but not always doable.
to fully automate on linux for option b (assuming kioskfox-0.4-fx.xpi is your extension file):
mkdir kf
unzip kioskfox-0.4-fx.xpi -d kf/
sudo mv kf /usr/lib/firefox-addons/extensions/`cat kf/install.rdf |grep em:id|head -1 | cut -d '>' -f 2|cut -d '<' -f 1`
rm -rf /home/*/.mozilla/firefox/*default
alternate to an rm -rf for option c (if firefox has been started already, and this line appears in the prefs.js):
mv /home/<user>/.mozilla/firefox/*default/prefs.js /home/<user>/.mozilla/firefox/*default/prefs.js.orig
cat /home/<user>/.mozilla/firefox/*default/prefs.js.orig | grep -v "extensions.newAddons" > /home/<user>/.mozilla/firefox/*default/prefs.js
dork around with it a bit to understand what I'm doing, to make sure you don't mess yourself up. obviously if you don't use the default profile, change *default to whatever the profile is named.
hth

I'm getting a new computer, I will have to download Firefox again, My question can you save your add-ons? I have reminder Firefox and I want to know if I should save the info?

I'm getting a new computer, I will have to download Firefox again, My question can you save your add-ons? I have reminder Firefox and I want to know if I should save the info?

You can use this extension to make a backup of the current Firefox profile folder:
*FEBE (Firefox Extension Backup Extension): https://addons.mozilla.org/firefox/addon/febe/

Always got prompt message twice when launching Firefox, How do i fix it?

I got this prompt message twice.
"TypeError: Components.classes['@thunder.com/thundercomponent;1'] is undefined"
== This happened ==
Every time Firefox opened
== I updated Firefox to latest version.

Hello Christopher.
You may be having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?
Whenever you have a problem with Firefox, whatever it is, you should make sure it's not coming from one of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe mode] and select ''Disable all add-ons''. If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes this article] for information about troubleshooting extensions and theme. You can troubleshoot plugins the same way.
If you want support for one of your add-ons, you'll need to contact its author.

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Did not even try to access this site, but Firefox automatically does.
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Uninstalling the Google toolbar using Add/Remove programs ( but it's still there? )
Uninstalled and re-installed Firefox 3.6 two times
Still get this msg box.
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Error when launching Firefox

Hi; I’m experiencing a problem when launching Firefox . Receive the following message;
Firefox can't establish a connection to the server at en-gb.start3.mozilla.com
I’ve removed and reloaded Firefox, but same problem.
The only thing I can think of that’s changed on the PC is that I’ve renewed & McAfe AntiVirus Plus (which also had to be removed then reloaded).
Any suggestions as to what’s the problem & how to fix?

I've tried checking the firewall issue; removed and reinstalled Firefox several time; run multiple anti-virus programs looking for issues; and it still doesn't work. However, today Google Chrome began working as my internet connection; and it works beautifully using Firefox (Go figure!). However, when I again reinstalled the actual Firefox program, it still does not work; so I have once again removed it. I find this very interesting.

When launching firefox, it no longer goes to my homepage. It goes to the last page visited while on line! Help??

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Check
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Ifound this article:
https://support.mozilla.org/pt-BR/questions/746499
in this article the problem is similar not the same, but sdmitch16 had a intersting idea disable the chrome options
and i search more in the internet i also found this:
https://support.mozilla.org/pt-BR/questions/760704

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Anything?

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I'm using creative cloud on mac and am a fully paid member.
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Disable "Checking Your Add-ons" When Launching Firefox

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