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Firefox wont open at all after last update (13.08.2015).

已張貼

After the last update (40.0.2 @ 13.08.2015) Firefox just wont open. The process comes visible in task manager, but does nothing. no window. JUST. NOTHING. It only functions in either safe mode or when ran as an administrator. I tried all other computers in the house too. Same thing.

How to fix?

After the last update (40.0.2 @ 13.08.2015) Firefox just wont open. The process comes visible in task manager, but does nothing. no window. JUST. NOTHING. It only functions in either safe mode or when ran as an administrator. I tried all other computers in the house too. Same thing. How to fix?

由 Estlib 於 修改

被選擇的解決方法

Try a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.


從原來的回覆中察看解決方案 2

額外的系統細節

已安裝的外掛程式

adblock edge adblock plus adblock plus pop-up addon adobe acrobat avast downthemall dvdvideosoft Estonian ID card software. flashgot font finder leethax.net mega proxtube utorrentcontrol video downloadhelper

應用程式

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36

更多資訊

jscher2000
  • Top 10 Contributor
8793 個解決方法 71930 個答案

Okay, the Safe Mode is an important clue.

Did you try disabling Firefox from using hardware acceleration? If you make the change in Safe Mode it will be saved and apply when you try to start up in normal mode.

"3-bar" menu button (or Tools menu) > Options > Advanced

On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"

Any difference?


If that doesn't help, could you post a list of your extensions to see whether any is known to cause startup issues. To do that, you can copy/paste from the support information page. Either:

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

Scroll down until you find Extensions followed by a table. You can select and copy the entire table and paste into a reply. We understand that everything is disabled in Safe Mode, so we'll just have to assume they are all re-enabled in normal mode.

Okay, the Safe Mode is an important clue. Did you try disabling Firefox from using hardware acceleration? If you make the change in Safe Mode it will be saved and apply when you try to start up in normal mode. "3-bar" menu button (or Tools menu) > Options > Advanced On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available" Any difference? ---- If that doesn't help, could you post a list of your extensions to see whether any is known to cause startup issues. To do that, you can copy/paste from the support information page. Either: * "3-bar" menu button > "?" button > Troubleshooting Information * (menu bar) Help > Troubleshooting Information * type or paste about:support in the address bar and press Enter Scroll down until you find Extensions followed by a table. You can select and copy the entire table and paste into a reply. We understand that everything is disabled in Safe Mode, so we'll just have to assume they are all re-enabled in normal mode.

提出問題者

It doesnt change anything. still nothing.


list of extentions and their statuses:

Adobe Acrobat - Create PDF ## DISABLED Avast Online Security ## DISABLED Estonian ID Card Authentication Module ## DISABLED

FYI, the list of plugins is in extra info

It doesnt change anything. still nothing. list of extentions and their statuses: Adobe Acrobat - Create PDF ## DISABLED Avast Online Security ## DISABLED Estonian ID Card Authentication Module ## DISABLED FYI, the list of plugins is in extra info

提出問題者

In addition, i did a quick test. The safe mode NO LONGER starts up via regular method. now i have to shift+run as administrator to access safe mode.

In addition, i did a quick test. The safe mode NO LONGER starts up via regular method. now i have to shift+run as administrator to access safe mode.
FredMcD
  • Top 10 Contributor
4270 個解決方法 59896 個答案

Disable Avast as a test. It has caused problem in the past.

Disable Avast as a test. It has caused problem in the past.

提出問題者

Tried doing things with avast disabled (the plugin was already disabled in non safe mode and regular mode) on the taskbar. Still absolutely nothing.

Tried doing things with avast disabled (the plugin was already disabled in non safe mode and regular mode) on the taskbar. Still absolutely nothing.
FredMcD
  • Top 10 Contributor
4270 個解決方法 59896 個答案

Start your Computer in safe mode with networking. Then start Firefox. Try Safe web sites. Is the problem still there?

Starting The Computer In Safe Mode;
Free Online Encyclopedia


I could be the Firefox window is opening outside your viewer.

You may have a corrupt xulstore.json file. https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved

Start your '''Computer''' in safe mode with networking. Then start Firefox. Try '''Safe''' web sites. Is the problem still there? '''[http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting The Computer In Safe Mode;<br>Free Online Encyclopedia]''' -------------------------- I could be the Firefox window is opening outside your viewer. You may have a corrupt '''xulstore.json''' file. '''https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved'''

提出問題者

It does, infact, start when computer is in safe mode. no firefox safe mode or admin auth needed


firefox is NOT opening outside my screen area. When alt+tabbing through programs, firefox does not appear as a blank entry (which in case of your theory, it should).

i guess this is one step closer?

It does, infact, start when computer is in safe mode. no firefox safe mode or admin auth needed -------------------------------- firefox is NOT opening outside my screen area. When alt+tabbing through programs, firefox does not appear as a blank entry (which in case of your theory, it should). i guess this is one step closer?
FredMcD
  • Top 10 Contributor
4270 個解決方法 59896 個答案

Estlib said

It does, infact, start when computer is in safe mode.

Then one of your other programs is at fault.

Disable your anti-virus type programs as a test. Then check other programs.

''Estlib [[#answer-769220|said]]'' <blockquote> It does, infact, start when computer is in safe mode. </blockquote> Then one of your other programs is at fault. Disable your anti-virus type programs as a test. Then check other programs.
jscher2000
  • Top 10 Contributor
8793 個解決方法 71930 個答案

This thread sound similar, in that Firefox only displays a window with "run as administrator" or in Windows Safe Mode: https://support.mozilla.org/questions/1078663

This thread sound similar, in that Firefox only displays a window with "run as administrator" or in Windows Safe Mode: https://support.mozilla.org/questions/1078663

提出問題者

FredMcD said

Estlib said
It does, infact, start when computer is in safe mode.

Then one of your other programs is at fault.

Disable your anti-virus type programs as a test. Then check other programs.

Antivirus disabled tests have already been done. It made no difference. The fact that firefox stopped working, is firefox's fault. It worked fine before. There is no reason to stop functioning now when the only thing that updated was firefox itself. Besides, i have so many programs, i dont know where to start.

jscher2000 said

This thread sound similar, in that Firefox only displays a window with "run as administrator" or in Windows Safe Mode: https://support.mozilla.org/questions/1078663

Checked it out - there was no solution. Since what his problem is, is pretty much what i have here, i suggest continuing with my question instead in hopes of finding an answer which might be the solution to both topics.


plans: locate the most recently updated programs between 12th and today to find out which one is the culprit. If thats the case...

''FredMcD [[#answer-769282|said]]'' <blockquote> ''Estlib [[#answer-769220|said]]'' <blockquote> It does, infact, start when computer is in safe mode. </blockquote> Then one of your other programs is at fault. Disable your anti-virus type programs as a test. Then check other programs. </blockquote> Antivirus disabled tests have already been done. It made no difference. The fact that firefox stopped working, is firefox's fault. It worked fine before. There is no reason to stop functioning now when the only thing that updated was firefox itself. Besides, i have so many programs, i dont know where to start. ''jscher2000 [[#answer-769290|said]]'' <blockquote> This thread sound similar, in that Firefox only displays a window with "run as administrator" or in Windows Safe Mode: https://support.mozilla.org/questions/1078663 </blockquote> Checked it out - there was no solution. Since what his problem is, is pretty much what i have here, i suggest continuing with my question instead in hopes of finding an answer which might be the solution to both topics. ----------------------------------------------- plans: locate the most recently updated programs between 12th and today to find out which one is the culprit. If thats the case...

提出問題者

Nothing found. I killed all unneeded tasks, and nothing.

Something interesting i forgot to mention. Once a broken process of firefox has been started, trying to open a safe mode or administrative process ontop of that will not work.

Nothing found. I killed all unneeded tasks, and nothing. Something interesting i forgot to mention. Once a broken process of firefox has been started, trying to open a safe mode or administrative process ontop of that will not work.
jscher2000
  • Top 10 Contributor
8793 個解決方法 71930 個答案

Estlib said

Once a broken process of firefox has been started, trying to open a safe mode or administrative process ontop of that will not work.

That seems normal. Usually Firefox will display an error at startup if it discovers firefox.exe in memory (and not let you proceed further).

''Estlib [[#answer-769370|said]]'' <blockquote> Once a broken process of firefox has been started, trying to open a safe mode or administrative process ontop of that will not work. </blockquote> That seems normal. Usually Firefox will display an error at startup if it discovers firefox.exe in memory (and not let you proceed further).

由 jscher2000 於 修改

提出問題者

There is no error. It never shows an error.

There is no error. It never shows an error.
cor-el
  • Top 10 Contributor
  • Moderator
17578 個解決方法 159013 個答案

選擇的解決方法

Try a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.


Try a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release. *Download the Firefox installer and save the file to the desktop<br>https://www.mozilla.org/en-US/firefox/all/ If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software. *Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions. Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer. *(32 bit Windows) "C:\Program Files\Mozilla Firefox\" *(64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\" *It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling. *http://kb.mozillazine.org/Uninstalling_Firefox Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data. ---- *http://kb.mozillazine.org/Profile_folder_-_Firefox *http://kb.mozillazine.org/Profile_backup *http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall
jjolidon 0 個解決方法 2 個答案

Hey there, question owner of https://support.mozilla.org/questions/1078663 here.

jscher2000 suggested installing the ESR version of Firefox (see other thread) and it did solve my issue. Even if it is only a temporary workaround, it might be worth testing it to solve your issue...

Hey there, question owner of https://support.mozilla.org/questions/1078663 here. jscher2000 suggested installing the ESR version of Firefox (see other thread) and it did solve my issue. Even if it is only a temporary workaround, it might be worth testing it to solve your issue...

有幫助的回覆

The "delete-folder-before-reinstall" worked, thanks guys.

The "delete-folder-before-reinstall" worked, thanks guys.