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Unable to open Firefox or uninstall Firefox on MacOS 15.2

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M2 Mac Mini 2023 running MacOS Sequoia 15.2. Firefox will not open after upgrading to MacOS 15.2. Searching online both Mozilla and Apple recommend uninstalling Firefox by dragging the app to the Trash and reinstalling. However, the Mac won't allow me to drag Firefox to the Trash. There are no Firefox processes running in Activity Monitor and the Firewall is turned off. Also, I'm unable to start Firefox in safe mode. I deleted the Library folder in Application Support for Firefox and still can't open the app or uninstall it. If I attempt to install a new copy of Firefox over the existing app I get the error message shown in the screenshot below. Can anyone suggest how to fix this?

M2 Mac Mini 2023 running MacOS Sequoia 15.2. Firefox will not open after upgrading to MacOS 15.2. Searching online both Mozilla and Apple recommend uninstalling Firefox by dragging the app to the Trash and reinstalling. However, the Mac won't allow me to drag Firefox to the Trash. There are no Firefox processes running in Activity Monitor and the Firewall is turned off. Also, I'm unable to start Firefox in safe mode. I deleted the Library folder in Application Support for Firefox and still can't open the app or uninstall it. If I attempt to install a new copy of Firefox over the existing app I get the error message shown in the screenshot below. Can anyone suggest how to fix this?
Attached screenshots

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