Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Firefox does not open

  • 3 respostas
  • 1 has this problem
  • 3 views
  • Last reply by FredMcD

blablablafly
blablablafly
more options

Hi,

I am running mac os catalina (latest), and up until today was using Firefox 72.2. For some reason it stopped working, when I click on the app to open it no window opens and the app immediately closes. I deleted the app, and installed version 73 after restarting the mac. Still had the same issue. I repeated the process of uninstall/install back, this time I even deleted all corresponding files in the Library (cache, app support etc). To note please that no error message appears and no crash report created. I repeated this process several times and still no result. Any suggestions? Thanks

Hi, I am running mac os catalina (latest), and up until today was using Firefox 72.2. For some reason it stopped working, when I click on the app to open it no window opens and the app immediately closes. I deleted the app, and installed version 73 after restarting the mac. Still had the same issue. I repeated the process of uninstall/install back, this time I even deleted all corresponding files in the Library (cache, app support etc). To note please that no error message appears and no crash report created. I repeated this process several times and still no result. Any suggestions? Thanks

All Replies (3)

FredMcD
FredMcD
more options

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

blablablafly
blablablafly Question owner
more options

FredMcD said

Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

Unfortunately I cannot start firefox in safe mode since Firefox doesn't start at all. The application quits immediately after I try to open it.

FredMcD
FredMcD
more options

And the Computer Safe Mode?