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Firefox will not connect

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  • 1 has this problem
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  • Last reply by FredMcD

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So this morning (5/4/2022) I start the computer (desktop) Win 10 Pro, 64 bit and Firefox will not connect.

Checks: I verified that my phone connects to my wireless; I verified that email is connecting; I verified that Chrome is connecting.

I did the following:

I refreshed Firefox -> Firefox will not connect I started Firefox in troubleshoot mode -> Firefox will not connect I uninstalled and then restarted my computer and then reinstalled -> Firefox will not connect

Further, the once working about:config update to reinstate compact menus has no effect (why not test for a mobile OS before expanding the menus...?) Regardless, this secondary for the moment.

What to next is a mystery to me. Firefox has become so troublesome that it is almost not worth it to continue fighting with it.

So this morning (5/4/2022) I start the computer (desktop) Win 10 Pro, 64 bit and Firefox will not connect. Checks: I verified that my phone connects to my wireless; I verified that email is connecting; I verified that Chrome is connecting. I did the following: I refreshed Firefox -> Firefox will not connect I started Firefox in troubleshoot mode -> Firefox will not connect I uninstalled and then restarted my computer and then reinstalled -> Firefox will not connect Further, the once working about:config update to reinstate compact menus has no effect (why not test for a mobile OS before expanding the menus...?) Regardless, this secondary for the moment. What to next is a mystery to me. Firefox has become so troublesome that it is almost not worth it to continue fighting with it.

Chosen solution

Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}

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Chosen Solution

Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}