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.<br />
See [[Basic Troubleshooting#Make_a_new_profile|Basic Troubleshooting&#58; Make a new profile]]<br />
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins"<br />
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

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  • Why does firefox hang up and say it "got confused", when I try to switch from using facebook as myself to using facebook as a page I manage?

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    Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions 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
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    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
    In Firefox 4 you can use one of these to start in <u>[[Safe mode]]</u>:
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  • Why does Firefox hang when I try to open yahoo? It also hangs after I use it for a little bit.

    When I try to open yahoo Firefox will hang and when I try to restart it will close but stay running. It seems to have started when yahoo went to the new version.I reset my screen resolution to 1152 by 864 pixels like yahoo said no difference. Firefox will also hang if I go to several web sites with out going to yahoo. I changed my home page to Hotmail instead of yahoo and it will open just fine. Any help will be appreciated. Rodney. [email protected]

    Please see the following articles [[Firefox Hangs]] and [[Firefox Crashes]]

  • Why does Firefox minimize itself upon launch. My husband is using Windows 8.1 with all recent updates.

    I am trying to find a solution to my husband's computer problem. Upon launching the Firefox browser it will immediately minimize itself to the bottom of the screen, sometimes it takes a few minutes to do this, but it always happens. This has occurred with Firefox since we purchased the new Dell computer 64 bit running Windows 8. We have received all of the Windows 8.1 updates for it, hoping that it would correct itself. It seems to only affect Firefox, not any other browser. It has the most current version of Firefox, but it has been happening for all versions. He also uses the Google Chrome browser and it doesn't happen with it. I hope someone can help us with this as it is getting very annoying. He has had the new computer for several months now. If more information is needed about his computer, please ask.

    What Firefox version is he using? If it's not current, you should update (for security, even if it doesn't fix this).
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    With this kind of problem, it's possible the Firefox program files got messed up. Ruling that out - by uninstalling - '''is faster than the addon troubleshooting''' steps below, so you may want to try uninstalling/ reinstalling first.
    '''PLEASE... backup your existing profile''', before doing anything. It'll only take a few min & can save tons of headache. Search support.mozilla.org or Mozillazine.org (not the same folks) for "how to back up profile." It's easy & something you should do, anyway.
    Uninstalling the Firefox program * shouldn't * affect your old profile, but you know how that goes.
    Sometimes weird things like that happen due to addons used (& maybe less often, plugins).
    Restart the browser in safe mode (search for: "mozillazine + safe mode", to see how).
    Don't select "make the disabling of addons permanent;" just hit continue.
    If it solves problem, you'll have to create another, new profile.
    First, just try the clean profile w/ no addons, to make sure it doesn't have the same prob.
    Start installing a couple of addons at a time, restarting as needed. Keep good notes.
    See if any addons cause the problem. If so, narrow it down.
    If you find one problem addon, don't assume the rest are OK, & install all the rest. More than one could be an issue.

  • Why does Firefox 5 open up to 8 browser windows when opening?

    I never had this problem with previous versions, and not even immediately upon upgrading to version 5, but now when I start Firefox, up to 8 separate browser windows open and I have to close each one individually. I am running Windows 7.

    It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
    Delete the files sessionstore.js [2] and sessionstore.bak in the Firefox Profile Folder.
    * Help > Troubleshooting Information > Profile Directory: Open Containing Folder
    * http://kb.mozillazine.org/Profile_folder_-_Firefox
    If you see files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js then delete those as well.<br />
    Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost, so you will have to create them again (make a note or bookmark them).
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    * [1] http://kb.mozillazine.org/Session_Restore
    * [2] http://kb.mozillazine.org/sessionstore.js

  • Why does firefox keep making it my default browser when I keep changing it to IE it changes back to firefox

    So every time I go to firefox it makes it my default broser but I dont want it to i changed it to IE but it changes back to firefox again. And I dont want firefox as default.
    == This happened ==
    Every time Firefox opened
    == about a week or so ago ==
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB6.4; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; MDDC; .NET CLR 3.5.30729; .NET CLR 3.0.30729; OfficeLiveConnector.1.4; OfficeLivePatch.1.3)

    Hello Mandy.
    I can't think of a scenario where Firefox would make itself the default browser against the user's consent. Still, go into Tools > Options > Advanced > General > System defaults and untick that small box at the bottom of the window that talks about Firefox asking you each time it starts.
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    I've used a USB interface to connect to the internet for several years without a problem. Last month our Alltel account was sold to ATT. They sent us a new USB device, and it works for about 5 minutes, but then Firefox will just hang, and not reload the page, or any page, until we disconnect and then reconnect. On a whim I tried connecting using IE when I was locked up on Firefox, and the connection worked fine. Until then I was blaming ATT, but now I think it is a Firefox issue.

    hello, maybe that's an issue with hardware acceleration - please try [[Upgrade your graphics drivers to use hardware acceleration and WebGL|updating your graphics driver]], or in case this doesn't solve the issue or there is no new version available at the moment, disable hardware acceleration in the firefox ''menu ≡ > options > advanced > general'' (that setting will take a restart of the browser to take effect).

  • With a window holding several tabs, why does FireFox hang

    I have several tabs open in a window. After a period of time, the window hangs and none of the sites in the tabs respond. I can't close the window and must force quit FF to continue. If I have another window open, the other window remains responsive, but I have to quit FF to resume work on the sites in the hung window.

    Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions 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
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

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