Please explain the problem in detail.
What happens? What is/are the exact error message(s) ?
Is the Firefox icon visible on the computer's taskbar?
Start Firefox using Troubleshoot(Safe) Mode {web link}
A small dialog should appear. Click
Start In Troubleshoot(Safe) Mode (not Refresh).
Is the problem still there?
Please explain the problem in detail.
What happens? What is/are the exact error message(s) ?
Is the Firefox icon visible on the computer's taskbar?
[https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode Start Firefox using Troubleshoot(Safe) Mode] {web link}
A small dialog should appear. Click
'''Start In Troubleshoot(Safe) Mode''' (not Refresh).
Is the problem still there?
