This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Əgər kömək lazımdırsa lütfən yeni sual verin.

Firefox stopped launching. Uninstalled & reinstalled. Went normally but Firefox still won't launch. The firefox process comes up. help

  • 4 cavab
  • 5 have this problem
  • 1 view
  • Last reply by WTC71

WTC71
WTC71
more options

FF 49.0.1, Window 7, 32-bit, Dell Latitude laptop. Firefox stopped launching, i.e. opening the UI. Fails to appear in the Task Manager "Applications" tab. Does appear twice in the Task Manager "Processes" Tab. Two sizes 15576K and 3700K. I tried uninstalling, rebooting, and re-installing. The uninstall appeared to run successfully. The subsequent installation appeared to run correctly. All file folder have correct date/time stamps.

Perhaps there some residual file that needs to be removed in order for Firefox to initialize properly? If so, what/where is it?

HELP, please.

FF 49.0.1, Window 7, 32-bit, Dell Latitude laptop. Firefox stopped launching, i.e. opening the UI. Fails to appear in the Task Manager "Applications" tab. Does appear twice in the Task Manager "Processes" Tab. Two sizes 15576K and 3700K. I tried uninstalling, rebooting, and re-installing. The uninstall appeared to run successfully. The subsequent installation appeared to run correctly. All file folder have correct date/time stamps. Perhaps there some residual file that needs to be removed in order for Firefox to initialize properly? If so, what/where is it? HELP, please.

Chosen solution

I am facing the same problem in windows 10. see https://support.mozilla.org/en-US/questions/1140455

I have reverted back to 48.0.1 for now and have disabled auto update

Read this answer in context 👍 0

All Replies (4)

asifbalgar
asifbalgar
more options

Seçilmiş Həll

I am facing the same problem in windows 10. see https://support.mozilla.org/en-US/questions/1140455

I have reverted back to 48.0.1 for now and have disabled auto update

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Will Firefox launch in its Safe Mode? In Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, and some other advanced features to help you assess whether these are causing the problem.

First, make sure firefox.exe does not appear in the Task Manager (Ctrl+Shift+Esc) -- on Windows 7 check the Processes tab, on Windows 10, it might be on the Details tab. You can select firefox.exe and End Process there.

Then:

Hold down the Shift key when starting Firefox.

A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Any improvement?

WTC71
WTC71 Question owner
more options

WTC71 said

FF 49.0.1, Window 7, 32-bit, Dell Latitude laptop. Firefox stopped launching, i.e. opening the UI. Fails to appear in the Task Manager "Applications" tab. Does appear twice in the Task Manager "Processes" Tab. Two sizes 15576K and 3700K. I tried uninstalling, rebooting, and re-installing. The uninstall appeared to run successfully. The subsequent installation appeared to run correctly. All file folder have correct date/time stamps. Perhaps there some residual file that needs to be removed in order for Firefox to initialize properly? If so, what/where is it? HELP, please.
WTC71
WTC71 Question owner
more options

Reverting to the previous version solved the problem. 49.0.1 doesn't work on the 32-bit laptop.

Thanks!