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Firefox cannot close without me ending the process, then needs to reset upon reopening.

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Firefox recently started acting up to the point where I have to end the process from Task Manager to be able to reopen it when I close. However, when I reopen it, it invariably freezes and I have to close it again until I get the option to reset. When I reset, I have to close the process from Task Manager again because it never finishes, and then Firefox works properly for one browsing session. When I close the window, I have to end the process manually and the cycle starts anew.

I have tried uninstalling and installing Firefox again to no avail. I also disabled the "restore previous session" feature because I felt it slowed down Firefox on startup, but that has not appeared to help either.

I use free editions of Malwarebytes and Microsoft Security Essentials for security.

Thanks in advance for any help you can provide.

Firefox recently started acting up to the point where I have to end the process from Task Manager to be able to reopen it when I close. However, when I reopen it, it invariably freezes and I have to close it again until I get the option to reset. When I reset, I have to close the process from Task Manager again because it never finishes, and then Firefox works properly for one browsing session. When I close the window, I have to end the process manually and the cycle starts anew. I have tried uninstalling and installing Firefox again to no avail. I also disabled the "restore previous session" feature because I felt it slowed down Firefox on startup, but that has not appeared to help either. I use free editions of Malwarebytes and Microsoft Security Essentials for security. Thanks in advance for any help you can provide.

由 Blubberto 於 修改

額外的系統細節

已安裝的外掛程式

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應用程式

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36

更多資訊

bkerensa 4 個解決方法 23 個答案

Hello,

Try Firefox Safe Mode to see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that turns off some settings, disables most add-ons (extensions and themes).

If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:

  • In Firefox 29.0 and above, click the menu button New Fx Menu , click Help Help-29 and select Restart with Add-ons Disabled.
  • In previous Firefox versions, click on the Firefox button at the top left of the Firefox window and click on Help (or click on Help in the Menu bar, if you don't have a Firefox button) then click on Restart with Add-ons Disabled.

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)

When the Firefox Safe Mode window appears, select "Start in Safe Mode".
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.

Hello, '''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, disables most add-ons (extensions and themes). If Firefox is open, you can restart in Firefox Safe Mode from the Help menu: *In Firefox 29.0 and above, click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''. *In previous Firefox versions, click on the Firefox button at the top left of the Firefox window and click on ''Help'' (or click on ''Help'' in the Menu bar, if you don't have a Firefox button) then click on ''Restart with Add-ons Disabled''. 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'' <br>(you may need to specify the Firefox installation path e.g. /usr/lib/firefox) When the Firefox Safe Mode window appears, select "Start in Safe Mode".<br> [[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.

提出問題者

Safe mode would not work; it would result in the same situation where the browser window would hang indefinitely and I would need to force Firefox to shut down.

However, strangely, Firefox is now working, but it is no longer saving my favorite tabs or page history; instead, it clears up every time I restart Firefox (despite settings to save browsing and search form history enabled). Logins and saved passwords seem to work as they did before.

The only changes I made were uninstalling a few extensions and themes, but I am unsure if that caused Firefox to stop hanging.

I am unsure if Firefox will continue to freeze in the future, however, so I am still interested in narrowing things down in that regard.

Thanks for your reply.

Safe mode would not work; it would result in the same situation where the browser window would hang indefinitely and I would need to force Firefox to shut down. However, strangely, Firefox is now working, but it is no longer saving my favorite tabs or page history; instead, it clears up every time I restart Firefox (despite settings to save browsing and search form history enabled). Logins and saved passwords seem to work as they did before. The only changes I made were uninstalling a few extensions and themes, but I am unsure if that caused Firefox to stop hanging. I am unsure if Firefox will continue to freeze in the future, however, so I am still interested in narrowing things down in that regard. Thanks for your reply.
cor-el
  • Top 10 Contributor
  • Moderator
12908 個解決方法 118374 個答案

Do you have the free version of Malwarebytes or the payed version?

We have seen reports that the payed version can cause issues when not properly configured.

Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.


You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data.

Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).

Do you have the free version of Malwarebytes or the payed version? We have seen reports that the payed version can cause issues when not properly configured. Boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps. *http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/ ---- You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data. *Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder) *http://kb.mozillazine.org/Profile_folder_-_Firefox *http://kb.mozillazine.org/Multiple_profile_files_created Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).
FredMcD
  • Top 10 Contributor
1074 個解決方法 15628 個答案

This is not a cure but will make it easier if Firefox locks up in Windows. https://support.mozilla.org/questions /997866 {web link}

This is not a cure but will make it easier if Firefox locks up in Windows. <strike>https://support.mozilla.org/questions /997866</strike> {web link}

由 James 於 修改

James
  • Top 25 Contributor
  • Moderator
721 個解決方法 5351 個答案

Fred please do not promote such as the thread was locked for a good reason.

https://support.mozilla.org/en-US/kb/forum-rules-and-guidelines
Fred please do not promote such as the thread was locked for a good reason. https://support.mozilla.org/en-US/kb/forum-rules-and-guidelines

提出問題者

I have the free version of Malwarebytes, so that was not the cause.

Strangely, Firefox is now working as normal -- no hanging upon startup, no history wipes upon exit. Not sure if it was anything I did (deleting a few stray extensions) or if it fixed itself, but at least it is working again.

Thanks for all suggestions provided.

I have the free version of Malwarebytes, so that was not the cause. Strangely, Firefox is now working as normal -- no hanging upon startup, no history wipes upon exit. Not sure if it was anything I did (deleting a few stray extensions) or if it fixed itself, but at least it is working again. Thanks for all suggestions provided.
FredMcD
  • Top 10 Contributor
1074 個解決方法 15628 個答案

Do you remember what you removed?

Do you remember what you removed?

提出問題者

Blank Your Monitor + Easy Reading was one of the extensions. Cogshanks Alt-O-Magic Identifizer was another. I also removed an Add to Amazon Wish List button, and a few themes (all very popular themes so I doubt it was that).

Don't remember any other extensions; sorry. It was only two or three other extensions.

Blank Your Monitor + Easy Reading was one of the extensions. Cogshanks Alt-O-Magic Identifizer was another. I also removed an Add to Amazon Wish List button, and a few themes (all very popular themes so I doubt it was that). Don't remember any other extensions; sorry. It was only two or three other extensions.