If i want to go to a Site, i recive this: "Maximum number of open connections reached.
" other Browser work. I have the Problem only with Firefox.
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the Troubleshoot Firefox issues caused by malware article.
Did this fix your problems? Please report back to us!
Check the connection settings.
If you do not need to use a proxy to connect to internet then select "Use the system proxy settings" setting or select "No Proxy".
See "Firefox connection settings":