Hi, Please also check if this happens in a [https://support.mozilla.org/en-US/kb/Managing-profiles new profile]. If the new profile is okay, you can then [https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems Reset Firefox] on the old (previous) profile via '''Help''' ('''Alt''' + '''H''') > '''Troubleshooting Information'''.

Thanks I created a brand new profile and I still have the same problem

Does Firefox crash and bring up the crash reporter? If you have submitted crash reports then please post the IDs of one or more crash reports (bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).<br /> You can find the IDs of the submitted crash reports on the <i>about:crashes</i> page.<br /> You can open the <b>about:crashes</b> page via the location bar, like you open a website.<br /> See: *http://kb.mozillazine.org/Mozilla_Crash_Reporter *https://support.mozilla.org/kb/Mozilla+Crash+Reporter *http://kb.mozillazine.org/Mozilla_Crash_Reporter#Location_of_crash_reports *http://kb.mozillazine.org/Mozilla_Crash_Reporter#Viewing_crash_reports ---- Do a malware check with some malware scanning programs on the Windows computer.<br /> You need to scan with all programs because each program detects different malware.<br /> Make sure that you update each program to get the latest version of their databases before doing a scan.<br /><br /> *http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware *http://www.superantispyware.com/ - SuperAntispyware *http://www.microsoft.com/security/scanner/en-us/default.aspx - Microsoft Safety Scanner *http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page *http://www.safer-networking.org/en/index.html - Spybot Search & Destroy You can also do a check for a rootkit infection with TDSSKiller. *http://support.kaspersky.com/viruses/solutions?qid=208280684 See also: *"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Firefox does not bring up any message: it just closes. I scanned my computer with all those AV and spyware.

You can try to check if a crash dump was created but failed to submit by typing '''about:crashes''' in the location bar. Please see [https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help?redirectlocale=en-US&redirectslug=Firefox+crashes#w_get-help-fixing-this-crash this].