Whenever I use the save file dialog in Firefox or Internet Explorer, the browser crashes. (Windows 10.) This problem does not occur with an non-browser programs.
Things I've tried (from various sources):
1. Clean install of Firefox. Same result.
2. Tried Internet Explorer. Same result.
3. Tried Safe Mode, no networking. Same result.
4. Creating a new account on the computer. Same result.
5. "Repair Install" of the O/S. Same result. (To 1903, about 3 months ago.)
6. sfc /scannow --all is okay.
7. My computer didn't have any restore points when this problem started.
8. Ran BitDefender and Malwarbytes - no viruses.
9. Dism /Online /Cleanup-Image /ScanHealth --all is okay.
10. Removed Comodo Security Essentials. Same Result.
11. Tried disabling firewall and anti-virus. Same Result.
12. Tried Microsoft Edge. Won't launch. The error is described below.
13. Removed the non-Windows shell extensions shown with ShellExView. The problem remains.
Reliability History gives the following information for the most recent Firefox crash (today - I lost an important transcript because I FORGOT again):
Description
Faulting Application Path: C:\Program Files\Mozilla Firefox\firefox.exe
Problem signature
Problem Event Name: BEX64
Application Name: firefox.exe
Application Version: 70.0.0.7228
Application Timestamp: 5da7687e
Fault Module Name: ntdll.dll
Fault Module Version: 10.0.18362.418
Reliability History gives the following information when I start to start Microsoft Edge. The application won't start - no window is ever displayed.
Description
Faulting Application Path: C:\Windows\System32\browser_broker.exe
Problem signature
Problem Event Name: APPCRASH
Application Name: browser_broker.exe
Application Version: 11.0.18362.267
Application Timestamp: af89393b
Fault Module Name: StackHash_01cc
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: c0000005
Exception Offset: PCH_21_FROM_unknown+0x0000000000000000
The computer doesn't have any other problems, and non-browsers aren't causing a problem.
No, I am not willing to do a clean install of the O/S. If that is what's required, then I'll buy a new laptop (ouch), and slowly migrate stuff over. (And then reinstall the O/S on this one and sell it - one year old.)
There has to be a fix.
Thanks for any help.