Firefox does not start (not even safemode) but uses CPU
I have the latest Firefox 25.0 (and latest Flash 11.9.900.117) on Windows 7 and the following behavior is reproducible. This started not too long ago.
At first when I start Firefox nothing appears no matter how often I restart. However, in the process list I see firefox.exe at 25% CPU, 2x FlashPlayerPlugin_11_9_900_117.exe (0% CPU) and plugincontainer.exe. No matter how often I kill all of them, Firefox wouldn't restart.
The following does also not help in this situation:
* Starting in normal Safemode: Firefox opens up a Window but freezes immediately and does not respond. The process list shows the the same processes even though I find FlashPlayer unexpected.
* Disable plugincontainer: Same results (just without plugincontainer.exe)
* Deinstall Flash: Same results (just without FlashPlayerPlugin)
The following can start Firefox once only:
* Starting in Safemode but select "Reset Firefox": Firefox won't start right away, though. Nothing happens and you have to kill the processes. However the very next time you start Firefox the normal way, it works fine (but it shows FlashPlayerPlugin.exe in the Windows process list despite not Tab being open). Unfortunately, after closing Firefox the processes (Firefox, FlashPlayerPlugin) are not removed. I kill them and the trouble with Firefox not starting reappears again.
I'm afraid not. As soon as I reset, Firefox disappears however two new FlashPlayerPlugin.exe processes start. Those together with firefox.exe remain as background processes and above cycle is the same.
There is one difference between resetting in safemode-startup (Shift clicking while startup and chosing "Reset") and resetting from the Troubleshooting menu: Only the former allows for a subsequent single normal start (after killing the first attempt as described above).
PS: My extensions did not get lost. Does that mean the "Reset" actually crashed? Also I'm using Sync.
PPS: I've tried disabling all Plugins (Flash etc.). Now when I close Firefox, FlashPlayerPlugin does not remain as a process, however firefox.exe does at 25% CPU. And when I try to restart Firefox, I again get two FlashPlayerPlugin processes with all the above symptoms (Plugins remain disabled in the configuration). This plugin is probably not the cause as I also tried deinstalling it, but it may give an indication where Firefox gets stuck.
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<Edited by Moderator> -
My Firefox version is 13.0.1, I use Windows Seven 64-bit, when I click on Firefox, but the program does not run! But Firefox is seen in the list of Windows processes, while Firefox does not run.
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Firefox process in Windows Processes names list called "firefox.exe * 32" is.
Please try to solve my problem, my problem is how to solve?Hi, are you saying that you start Firefox and it stalls -- you can see it in the Task Manager but it never displays -- but if you kill that process and start Firefox again it starts up properly that second time?
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*https://support.mozilla.org/kb/Safe+Mode
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'''<u>Other Toolbars</u>''', see: https://support.mozilla.com/en-US/kb/Back+and+forward+or+other+toolbar+items+are+missing<br />
'''<u>Status Bar</u>''': click View, click Status Bar to place a check mark<br />
'''<u>Full Screen Mode</u>''': If you have no Toolbars or Tab Bar: Press F11 (F11 is an on/off toggle). See: http://kb.mozillazine.org/Netbooks#Full_screen<br />
Also see: http://kb.mozillazine.org/Toolbar_customization_-_Firefox#Restoring_missing_menu_or_other_toolbars
<br />
<br />
'''Other items that need your attention'''
The information submitted with your question indicates that you have out of date plugins with known security and stability issues that should be updated. To see the plugins submitted with your question, click "More system details..." to the right of your original question post. You can also see your plugins from the Firefox menu, Tools > Add-ons > Plugins.<br />
<br />
*Adobe PDF Plug-In For Firefox and Netscape
**Current versions are 9.4.2 and 10.0.1 (aka Reader X)
**More info about version 10 (aka Reader X)
***New Adobe Reader X (version 10) with Protected Mode was released 2010-11-19
***See: http://www.securityweek.com/adobe-releases-acrobat-reader-x-protected-mode
#'''Check your plugin versions''': http://www.mozilla.com/en-US/plugincheck/
#*'''Note: plugin check page does not have information on all plugin versions'''
#'''Update Adobe Reader (PDF plugin):'''
#*From within your existing Adobe Reader ('''<u>if you have it already installed</u>'''):
#**Open the Adobe Reader program from your Programs list
#**Click Help > Check for Updates
#**Follow the prompts for updating
#**If this method works for you, skip the "Download complete installer" section below and proceed to "After the installation" below
#*Download complete installer ('''if you do <u>NOT</u> have Adobe Reader installed'''):
#**Use the links below to avoid getting the troublesome "getplus" Adobe Download Manager and other "extras" you may not want
#**Use Firefox to download and SAVE the installer to your hard drive from the appropriate link below
#**Click "Save to File"; save to your Desktop (so you can find it)
#**After download completes, close Firefox
#**Click the installer you just downloaded and allow the install to continue
#***Note: Vista and Win7 users may need to right-click the installer and choose "Run as Administrator"
#**'''<u>Download link</u>''': ftp://ftp.adobe.com/pub/adobe/reader/
#***Choose your OS
#***Choose the latest #.x version (example 9.x, for version 9)
#***Choose the highest number version listed
#****NOTE: 10.x is the new Adobe Reader X (Windows and Mac only as of this posting)
#***Choose your language
#***Download the file, SAVE it to your hard drive, when complete, close Firefox, click on the installer you just downloaded and let it install.
#***Windows: choose the .exe file; Mac: choose the .dmg file
#*Using either of the links below will force you to install the "getPlus" Adobe Download Manager. Also be sure to uncheck the McAfee Scanner if you do not want the link forcibly installed on your desktop
#**''<u>Also see Download link</u>''': http://get.adobe.com/reader/otherversions/
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