Firefox Tips:Firefox Browser running but not open

Firefox Troubleshooting:

The fix was to uninstall Firefox and then manually delete in the registry (using the program regedit.exe provided by Microsoft) most entries for Firefox (especially those in HKEY_CURRENT_USER and HKEY_LOCAL_MACHINE), then reinstalling Firefox. It now opens normally.

Chrome Troubleshooting:

I right click on the Chrome shortcut, get the Properties and click on the Open File Location button. This takes me to folder

 

C:\Users\myuserid\AppData\Local\Google\Chrome\Application

 

Sure enough, there is a file in that folder called debug.log and it's just what I was looking for, an error log in plain text. In Notepad, it looks like gibberish, but displayed in a better text editor, such as Notepad++, the errors are easy to read. 

 

There seem to be a pair of errors generated every time I try to run Chrome. The first pair is below.

 

0706/215116:ERROR:client_util.cc(394)
  Failed to load Chrome DLL from
  C:\Users\myuserid\AppData\Local\Google\Chrome\
  Application\20.0.1132.43\chrome.dll

0706/215116:ERROR:client_util.cc(442)
  Could not find exported function
  RelaunchChromeBrowserWithNewCommandLineIfNeeded