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Firefox Install Problem

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  • Last reply by FredMcD

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I was having issues with Firefox freezing on launch, so I ran the repair which did not help. I tried to uninstall the browser and the uninstall stopped responding. I downloaded and ran the Firefox Setup 93.0.exe file and it freezes trying to execute the default-browser-agent.exe at register-task E7... (see the attached photo - I can't expand the window to read it from there).

I much prefer Firefox to Chrome and would like to get it up and running. Any help would be appreciated.

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Let’s do a full clean re-install;

Note: Firefox comes in three or more folders on all computers. They are;

Maintenance: (Programs Folder) <Windows Only> Firefox itself: (Programs Folder) And two folders in the profile of each user on the computer for each Firefox profile for that user.

If you remove the Firefox folder, the user profiles would not be affected.


Download Firefox For All languages And Systems {web link}

Firefox ESR; Extended Support Release {web link}

Beta, Developer, Nightly versions https://www.mozilla.org/en-US/firefox/channel/desktop/

Install Older Version Of Firefox {web link} Be sure to read everything here.


Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86) Note: Check Both Folders

Mac: Open the "Applications" folder. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

Linux: Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux; https://support.mozilla.org/en-US/kb/install-firefox-linux

If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. http://www.mozilla.org/firefox#desktop ++++++++++++++++++++++++++++ Look for, and remove any Mozilla or Firefox program folders. Do not remove the Mozilla Thunderbird folder if there is one.

Do Not remove any profile folders.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. +++++++++++++++++++++++++++ If there is a problem, start your Computer in safe mode and try again.

How to Start all Computers in Safe Mode; {web link} Free Online Encyclopedia

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Thanks FredMcD. I thought I found what I needed to find, but apparently not (I'm more of a novice at this). It still hangs up in the same spot during installation...

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FredMcD said

If there is a problem, start your Computer in safe mode and try again. How to Start all Computers in Safe Mode; {web link} Free Online Encyclopedia

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