Steps to reproduce: 1. Install Firefox 81 in D:\Program Files. 2. Run update and restart. Actual result: UAC prompt appears. Expected result: Maintenance service should launch the updater for me. I have to enter a credential because I'm using a standard user. This is really annoying. Even worse, if I change the install location to C:\Proram Files, I can't inherit my user profile due to the "dedicated profile per installation" feature. Apparently, this is an intentional change to fix CVE-2020-15663 (bug 1643199). But, could you please actually check whether the install location is user-writable instead of hard-coding allowed directories?
Bug 1676840 Comment 0 Edit History
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Steps to reproduce: 1. Install Firefox 81 in a non-default location. Make sure that the install directory is *not* user-writable. 2. Run update and restart. Actual result: UAC prompt appears. Expected result: Maintenance service should launch the updater for me. I have to enter a credential because I'm using a standard user. This is really annoying. Even worse, if I change the install location to C:\Proram Files, I can't inherit my user profile due to the "dedicated profile per installation" feature. Apparently, this is an intentional change to fix CVE-2020-15663 (bug 1643199). But, could you please actually check whether the install location is user-writable instead of hard-coding allowed directories?