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. Press the following shortcut to get a Run window: [Windows] + [R]. This should bring up a window that contains a text field.
2. In that text field, enter %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 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.

hello seattletoad, this crash is probably related to malware on your system - a file called proto.dll is causing the crash (in addition there's HKMLLoad.dll hooked into firefox which looks quite suspicious).

please try to use one of the tools mentioned in the following article to do a full scan of your system and/or contact a forum specialised on malware removal: Troubleshoot Firefox issues caused by malware

afterwards please Update Firefox to the latest release since 3.6.28 is no longer receiving security updates.

He has crash ID's in more system details.
bp-8504e0e9-1dc5-46f1-870c-052432120621
bp-808af39a-9bfd-4411-a544-094de2120621
bp-554a91cd-a591-464c-9de4-aee322120621
bp-fcd14a15-6def-46aa-be5e-30e682120621
bp-ee2d7baf-cf79-4f6e-a096-f7dae2120621