Why does Firefox keep hanging unexpectedly?

Hi,
I'm running 6.0.2 (Windows 7 x86) and it's frequently locking up for no apparent reason...
I've had this problem previously and at the time it was fixed by disabling hardware acceleration.
This option is still deactivated but the issue has since returned!
Help!
Brian

Why not ask in the iMovie forums of whichever version you are using? It's where the experts hang out at.

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Why does Firefox keep hanging, crashing, sulking, dying when internet connection behaves?

Why does Firefox keep hanging, crashing, sulking, dying when internet connection behaves? Once it renders the page it should forget about the page. Why does it behave when some link is clicked when there is no internet? It should just say internet not available or some crap. Why die, sulk, crash?? I don't get it! 3 series was much much much better!

I should add, I've re-downloaded Firefox, but that doesn't look like it has helped any. Still get seemingly inexplicable crashes.

Why does firefox 4 hang in some websites, during browsing on that site ? This never happened with previous editions.

why does firefox 4 hang in some websites, during browsing on that site ? This never happened with previous editions. edit
Details

Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
Create a new profile as a test to check if your current profile is causing the problems. 
See [[Basic Troubleshooting#Make_a_new_profile|Basic Troubleshooting: 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" 
If that new profile works then you can transfer some files from the old profile to that new profile (be careful not to copy corrupted files)
See http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Why does firefox keep blocking websites that I have gone to in the past

Why does firefox keep blocking websites I have gone to in the past?

From http://watchseries.lt/tips#htw
<pre><blockquote>Why videos do not work for me?
You need Flash Player or DivX Player. Both of these programs are used everywhere online; their size is small and will not harm your computer. You should download them from here:
DivX: http://www.divx.com/en/software/download/start
Flash: http://get.adobe.com/flashplayer/</blockquote></pre>

Why does Firefox keep opening 3 random tabs while browsing different websites?

Just to clarify: They are never spam websites. They may be 3 of the same website, but it is always random. I only browse safe websites. This usually happens while Stumbling (StumbleUpon).
For example:
StumbleUpon brought me to this website:
[[http://www.thecreatorsproject.com/blog/5000-fiber-optic-flowers-invade-museum-grounds-in-ifield-of-lighti]]
Then it also opened three of this webpage:
[[https://en.wikipedia.org/wiki/First_Earth_Battalion]]
They have nothing to do with each other. Why does this keep happening? I searched with Anti-Malwarebytes, SuperAntiSpyware and Microsoft Security Essentials. No viruses.
I have Windows Vista Home Basics 32-bit. And is running Firefox 8.0. (This problem existed in 7.0 and previous as well.

I've already done this, and it says nothing is wrong with my system.

Why does firefox keep crashing? I ran a scan and there was no spyware or malware. I uninstalled and reinstalled firefox. It doesn't happen in safe mode.

For some unknown reason firefox keeps crashing on my laptop computer. I mostly just use the internet for surfing and for emailing. It is very frustrating when I am trying to write an email and firefox crashes. I have unistalled and reinstalled firefox. I ran a McAfee scan on the computer and it has no problems with spyware or malware. It doesn't crash in safemode either. I am in safe mode now otherwise it would have crashed multiple times while getting to this page and typing this message.

If Firefox crashes frequently but stops crashing when you are in Safe Mode that is a pretty sure sign that there is something wrong with your individual setup of Firefox on your Windows 7 machine.
(The 99 others claiming to have the same problem this week probably have their own distinct and separate problems - if you are one of those 99 it may make sense to start your own questions about your problems, if you do not see suitable answers).
Many malware problems would continue even in Firefox's [[safe mode]], so the good news is that malware may not be your problem.
Note that safe mode does not disable plugins, you may wish to consider testing with your plugins disabled, just in case they are interacting with something. To temporarily disable plugins use
* '''Firefox button -> Add-ons -> |Plugins|'''
You do not list the Firefox extensions that are in use, maybe one of them is a problem. I suggest you try Firefox with half of them disabled, if that solves the problem, the troublesome add-on may be in the other half, disable them all and then try with half of the other half enabled. (If you have more than a handful of add-ons it is faster testing like that than enabling or disabling one at a time)
One very important question is how do you know Firefox is crashing ? will you please explain exactly what happens, and what if any error messages you are seeing. (If firefox freezes/hangs that may be different from Firefox or the OS crashing, and require different solutions).
On a general note the following articles may help with troubleshooting:
* [[basic troubleshooting]]
* [[troubleshooting extensions and themes]]
* [[http://kb.mozillazine.org/Standard_diagnostic_%28Firefox%29]]
and if the problem is a true crash
* see [[firefox crashes]]

Why does Firefox keep crashing when I use it on my Dell Precision computer w/XP operating system?

Well, this is embarrassing.
Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page.
You can try:
Removing one or more tabs that you think may be causing the problem
Starting an entirely new browsing session

If Firefox crashes frequently but stops crashing when you are in Safe Mode that is a pretty sure sign that there is something wrong with your individual setup of Firefox on your Windows 7 machine.
(The 99 others claiming to have the same problem this week probably have their own distinct and separate problems - if you are one of those 99 it may make sense to start your own questions about your problems, if you do not see suitable answers).
Many malware problems would continue even in Firefox's [[safe mode]], so the good news is that malware may not be your problem.
Note that safe mode does not disable plugins, you may wish to consider testing with your plugins disabled, just in case they are interacting with something. To temporarily disable plugins use
* '''Firefox button -> Add-ons -> |Plugins|'''
You do not list the Firefox extensions that are in use, maybe one of them is a problem. I suggest you try Firefox with half of them disabled, if that solves the problem, the troublesome add-on may be in the other half, disable them all and then try with half of the other half enabled. (If you have more than a handful of add-ons it is faster testing like that than enabling or disabling one at a time)
One very important question is how do you know Firefox is crashing ? will you please explain exactly what happens, and what if any error messages you are seeing. (If firefox freezes/hangs that may be different from Firefox or the OS crashing, and require different solutions).
On a general note the following articles may help with troubleshooting:
* [[basic troubleshooting]]
* [[troubleshooting extensions and themes]]
* [[http://kb.mozillazine.org/Standard_diagnostic_%28Firefox%29]]
and if the problem is a true crash
* see [[firefox crashes]]

Why does firefox keep changing things up with new versions?

It really bothers me that Firefox keeps changing things, namely the user interface with new versions. They move buttons around like the back / forward, and refresh button. If I don't have the latest version I get prompted to download it each time I open my web browser. Now with this latest update I got a good inch and a half at the top of my screen that should be gray but is transparent and shows my desktop background. Also, I like to right click and 'open link in new' tab a lot, I thought it used to be 'open link in new window' first than 'open link in new tab' second. They switched them around now I'm opening new windows instead of tabs from clicking the second option by habit. Its not that big of a deal but why keep changing it up when I'm comfortable with what I know.

You can use Themes or Personas to change the display of Firefox browser.
* https://addons.mozilla.org/en-US/firefox/themes/
* https://addons.mozilla.org/en-US/firefox/personas/
You can Middle-click a link using Mouse or use '''CTRL + Left-click''' shortkeys to open a link in a New Tab. See these articles:
* [[Mouse shortcuts]]
* [[Keyboard shortcuts]]
Check and tell if its working.
Not related to your problem but some of your Firefox Plugins are out-dated, so you need to Update them.
-> Update All your Firefox Plugins by visiting the following link:
* http://www.mozilla.com/en-US/plugincheck/
* '''When Downloading Plugins setup files, Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, etc.)'''

Why does Firefox keep crashing with Mavericks?

I don't want any answers on this, but I would strongly suggest that people should not download Mavericks. I did so today, March 22, and since then Firefox keeps crashing or going into the spinning wheel mode. Once it actually shut down my domputer. Clearly Apple updates are becoming as worthless as windows updates.

I haven't had any issues with Firefox and Mavericks. The only issues I've had have been minor.
I suggest you test in a new User. This will quickly tell you if the problem is system wide or if it's your User's folder that contains the problem.
CREATE A NEW USER
Go to System Preferences --> Create a New User in Accounts. Switch to the New User by logging out/in or use Fast User Switching
Do you still see the issue?
If yes, then the problem is with your base files.
If no, then the problem is in your User's folder.
Download EtreCheck. It will display the important details of your system configuration and highlight old files you still might have around that will affect Mavericks. If you need help with the results, you can copy the results to the Clipboard. and paste on the fourm.
http://www.etresoft.com/etrecheck

Why does Firefox keep opening new Windows rather than a new Tab in the current window?

I have " Open a new Tab in the current Window" select in Preferences.
Why then does this version (Version 4) keep opening new Windows, rather than new Tabs in the current Window.
This feature worked fine in 3.6.1.3, but in Version 4, it is a frigging pain in the rigging!
C'mon, Mozilla - time for an URGENT update ...

That issue can be caused by an extension that isn't working properly.
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

Why does firefox keep throwing me out of Facebook?

I have just recently downloaded firefox as my internet browser but unfortunately it keeps throwing me out of facebook. Can you tell me why.
Also when I play games on facebook it is very slow compared to what it was before I downloaded Firefox.

Hi herself,
Thank you for your question. I am curious what your timeout value is in the about:config page. Does your connection take a long time to load normally? Does it happen on your data or on a wifi connection?
The network.http.connection-retry-timeout default is 250
and the connection timeout is 90 seconds. After this try to reload the page.
Is there a site this is happening regularly and the internet is fine? I think it is 5126, but not sure if this is bytes? What site is it happening the most on?
Happy to help.

Why does Firefox keep installing Miro with every new update ?

Some months ago I downloaded Miro, although I never made much use of it.After the recent Firefox update to 3.6.4 I noticed that used memory suddenly jumped by around 20 % and when I investigated in Resource Monitor I found that Miro had started running 2 processes in the background which were consuming considerable resources. I also found that my address bar had been hijacked by a change in the keyword:URlL setting. None of these problems had come up prior to the 3.6.4 update. I uninstalled Miro, restored my keyword setting,and successfully killed it's processes. I used Revo uninstaller pro and I am certain that nothing was left behind. But after the next Firefox update to 3.6.6 I noticed a sudden jump in memory usage and then discovered that Miro had re-installed and had begun running the same 2 processes. I have now gone to considerable time and trouble to deal with this problem twice in one week and I would appreciate an explanation as to why Miro is re-installing every time i update Firefox.
== This happened ==
Every time Firefox opened
== I udated to 3.6.4, then 3.6.6

firefox keeps installing and uninstalling java on my windows xp pro computers. I hope this gets addressed before I switch to chrome.

Why does firefox keeps forcing itself on top of all other windows? it doesn't matter what website im on, it always does it! Really gets on my nerves when im watching a video only to have it minimized and firefox slammed in my face lol...

It's not to do with what website I'm on - Firefox ALWAYS does this even if I just have a blank tab open! Seems to happen in ubuntu and windows 7. Does anyone know why this is??

Hi,
You can consider the [https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems Reset Firefox] feature via '''Help''' ('''Alt''' + '''H''') > '''Troubleshooting Information'''. If it is okay, you can then install the Mozilla Archive Format add-on.
If you have security software installed you can try to delete all existing entries for Firefox and its sub processes in the different configuration modules and try to fully trust/allow Firefox afresh. Even after network access is completed, Firefox would still need unlimited access to its disk cache/memory as well as its files. Please see [https://support.mozilla.org/en-US/kb/Firewalls this].
[http://kb.mozillazine.org/Firewalls AV/Firewall Configuration]

Why does Firefox keep me logged into websites after closing and reopening the browser?

As of today, Firefox has been behaving differently. Namely, when I close Firefox and reopen, I am still logged in to email and other sites. I have all of my privacy settings checked, such as clear history, offline data, form history, etc etc so that they all will be deleted upon closing but this has no effect. Can someone provide insight as to why this is happening and how I can correct it? Before today, after closing and reopening the browser I was required to log in to any sites requiring UN and PW.
I have rechecked all history deletion options to make sure all the appropriate ones were selected. Yesterday, I noticed inbox.com and a program called 24x7 Help were installed on the computer, without my knowledge. I promptly uninstalled them,but I'm not sure if they could somehow be responsible for the odd behavior.

Such a behavior indicates that you keep the cookie(s) that verify that you are logged on to a web server.
Are you using session restore to open those tabs automatically?
* Tools > Options > General > Startup: "When Firefox Starts": "Show my windows and tabs from last time"
You can set the browser.sessionstore.privacy_level pref to 2 (never) or 1 (non-HTTPS, default in Firefox 3 versions) on the about:config page to disable saving cookies via session restore.
You can change the browser.sessionstore.privacy_level_deferred pref that is used when you do not reopen the previous session automatically via "Show my windows and tabs from last time".
* http://kb.mozillazine.org/browser.sessionstore.privacy_level
*http://kb.mozillazine.org/about:config

Why does firefox keep changing colors?

Suddenly the Firefox background color keeps changing (blue, tan, gray) I would like to keep it one constant color. How/ why did this happen today when I changed nothing, and how do I fix this?

Are you using Firefox theme and choose Random theme option?
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that turns off some settings and disables most add-ons (extensions and themes).
''(If you're using an added theme, switch to the Default theme.)''
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu by clicking on the '''Restart with Add-ons Disabled...''' menu item: 
[[Image:FirefoxSafeMode|width=520]] 
If Firefox is not running, you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.
Thank you.

Why does Firefox keep hanging unexpectedly?

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