X
Tap here to go to the mobile version of the site.

Support Forum

can't open websites other browsers can, tried all the fixes I could find, only solution is to uninstall my Symantec 14.0.2349.

Posted

I have 10 brand new Dell Inspiron computers running Windows 10 Home. Installed Symantec Endpoint Protection 14.0.2349, Firefox 52 and now 53. Firefox won't open any websites and appears to be locked up while Chrome and Edge work fine. The only way I can get Firefox to work is to uninstall the SEP 14. Obviously not a good solution for my company.

I've tried every solution I could find, proxy settings, firewall settings, disabled IPv6, deleted and added Firefox to the list of allowed websites. about:crash gives me a blank screen.

Have any thoughts or other solutions?

Mark Harrison Network Manager Patterson-Schwartz & Associates


edited email from public and search/spam bots as nobody here does support by email.

I have 10 brand new Dell Inspiron computers running Windows 10 Home. Installed Symantec Endpoint Protection 14.0.2349, Firefox 52 and now 53. Firefox won't open any websites and appears to be locked up while Chrome and Edge work fine. The only way I can get Firefox to work is to uninstall the SEP 14. Obviously not a good solution for my company. I've tried every solution I could find, proxy settings, firewall settings, disabled IPv6, deleted and added Firefox to the list of allowed websites. about:crash gives me a blank screen. Have any thoughts or other solutions? Mark Harrison Network Manager Patterson-Schwartz & Associates edited email from public and search/spam bots as nobody here does support by email.

Modified by James

Chosen solution

Do you also have Malwarebytes Exploit Protection running? There is a known incompatibility between some versions of that software and Firefox's Multiprocess feature which causes (1) connecting but never loading, and (2) the window close button doesn't work.

Otherwise, Firefox and Norton usually play fine together, apart from the kinds of things described in this article: Firefox can't load websites but other browsers can.

Read this answer in context 0

Additional System Details

Installed Plug-ins

  • Shockwave Flash 25.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0

More Information

jscher2000
  • Top 10 Contributor
8637 solutions 70667 answers

Chosen Solution

Do you also have Malwarebytes Exploit Protection running? There is a known incompatibility between some versions of that software and Firefox's Multiprocess feature which causes (1) connecting but never loading, and (2) the window close button doesn't work.

Otherwise, Firefox and Norton usually play fine together, apart from the kinds of things described in this article: Firefox can't load websites but other browsers can.

Do you also have Malwarebytes Exploit Protection running? There is a known incompatibility between some versions of that software and Firefox's Multiprocess feature which causes (1) connecting but never loading, and (2) the window close button doesn't work. Otherwise, Firefox and Norton usually play fine together, apart from the kinds of things described in this article: [[Firefox can't load websites but other browsers can]].

Question owner

Fixed. thank you.

Fixed. thank you.

Question owner

I uninstalled Malwarebytes and it works.

I uninstalled Malwarebytes and it works.
jscher2000
  • Top 10 Contributor
8637 solutions 70667 answers

Peculiarly, it's just that combination --

Recent Windows 10 update + Norton security + Malwarebytes Premium

-- which is causing this issue. MWB Exploit Protection is said to have the option to exclude firefox.exe but I haven't seen the specifics on how to do it.

Peculiarly, it's just that combination -- <p>Recent Windows 10 update + Norton security + Malwarebytes Premium</p> <p>-- which is causing this issue. MWB Exploit Protection is said to have the option to exclude firefox.exe but I haven't seen the specifics on how to do it.</p>