We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

1. On the keyboard, press [Windows] The image "Windows key" does not exist. + [R]. This should bring up a Run window that contains a text field.
2. In that text field, type %APPDATA% and press Enter. An explorer window should open.
3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
4. Now, you should see a list of files that contain reports. Go to View > Arrange Icons by > Modified to get the most recent files at the top of the window.
5. Open the most recent 5 files with a text editor and copy the IDs.
6. Paste each ID with bp- into the reply window on the forums.

Thanks in advance!

You can find more information and troubleshooting steps in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

This is the only one:

Krasch-ID: bp-d1f19a85-3d02-4955-8ce5-97cb92120705

I don't think that crash report ID was sent to Mozilla. It comes up as "Crash Not Found". Click on that crash report in about:crashes to send it to the Crash Report server.

I also get this information from Windows:

Problemsignatur:

 Problemhändelsens namn:	APPCRASH
 Programnamn:	firefox.exe
 Programversion:	41.0.2.5765
 Programtidsstämpel:	561ee543
 Namn på felmodul:	StackHash_8e7b
 Modulens version:	0.0.0.0
 Tidsstämpel för felmodul:	00000000
 Undantagskod:	c000041d
 Undantagsförskjutning:	77aad8f1
 OS-version:	6.1.7601.2.1.0.768.3
 Språkvariant-ID:	1053
 Ytterligare information 1:	8e7b
 Ytterligare information 2:	8e7ba898c09a8e7aab0b521bdd9150bc
 Ytterligare information 3:	3af7
 Ytterligare information 4:	3af71d004631e3d18a1b8352196fcd2e

It could be another program, as you said every browser crashes.

Also, test your modem.

Start your Computer in safe mode with networking. Then start Firefox. Try Safe web sites. Is the problem still there?

Starting The Computer In Safe Mode;
Free Online Encyclopedia

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}

I think I solved the problem!

It seems to be the new version of "avg protection: zen",that is messing with all the web-browsers, doesn't scan for viruses, closes the network connection, and doesn't repair itself ... So I removed it and it all seems to be working as normal...

Should have known that avg was problem since all the headache began after it updated.

Thanks for all the help!