We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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. Please ask a new question if you need help.

I seem to have major issues with the latest version. It locks up my computer and have to reboot. I have un installed and re installed several times to no avail

  • 1 reply
  • 1 has this problem
  • 6 views
  • Last reply by FredMcD

twicoin
twicoin
more options

with the last update I found myself unable to get online. The hourglass would spin and spin and nothing. I un installed FF. I then went to your site and downloaded again and installed the latest version (again) 41.0.2. It seemed to download alright but as soon as I try and go online again it just hangs. I have issues even opening task manager when things hang. As soon as I actually get rid of FF then everything seems normal again.

I am able to get online with IE and Chrome no problems.

I could not find anything on any known issues with the new version.

I have also run my virus, spam, ad aware. reg cleaner and then tried a fresh install and the same issue comes up.

I love FF over the others and would really like to stay with FF. Any help would be greatly appreciated.

Thank you

with the last update I found myself unable to get online. The hourglass would spin and spin and nothing. I un installed FF. I then went to your site and downloaded again and installed the latest version (again) 41.0.2. It seemed to download alright but as soon as I try and go online again it just hangs. I have issues even opening task manager when things hang. As soon as I actually get rid of FF then everything seems normal again. I am able to get online with IE and Chrome no problems. I could not find anything on any known issues with the new version. I have also run my virus, spam, ad aware. reg cleaner and then tried a fresh install and the same issue comes up. I love FF over the others and would really like to stay with FF. Any help would be greatly appreciated. Thank you

All Replies (1)

FredMcD
FredMcD
more options

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select Network. Look for Configure How Firefox Connects and press the Settings button. If you are using a proxy, make sure those settings are correct. If there is no proxy, first use No Proxy. If there is a problem, then try System Proxy.

Some problems occurs 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}