We can still see that Firefox is not shown as the default browser in the about: preferences page even if it is by using the latest Firefox Nightly MSIX (2024-01-08) if the following steps are performed: 1. Set Edge as the default browser 2. Install and open Firefox MSIX without this patch (2024-01-04) 3. Set Firefox MSIX as the default browser (at this step Firefox will not be displayed as default in the Preferences page) 4. Download the latest Firefox MSIX build and click to update it. 5. Open the Preferences page and observe that Firefox is not the default browser. 6. Setting Edge as default and the Firefox MSIX again will still reproduce the issue. This issue can be seen only if Firefox is updated from a bad build where this issue was already reproduced on stations where Microsoft rollout is active. Uninstalling and reinstalling Firefox MSIX fixes this issue even on an affected Firefox profile. Otherwise clicking the Make default button with Firefox 123.0a1 (2024-01-08) fresh installation will now open the Default Apps Window on Windows 10x64 22H2 and Windows 11 23H2 (with and without rollout) and the default browser will be changed to Firefox only after clicking the Make as default button from the Default Apps window changing the (HTTP, HTTPS, HTM and HTML types as expected). Should we file another issue for this specific scenario fpor tracking purposes? We don’t see any error in the browser console, should we see one there or in some other place? Thank you!
Bug 1870047 Comment 13 Edit History
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We can still see that Firefox is not shown as the default browser in the about: preferences page even if it is by using the latest Firefox Nightly MSIX (2024-01-08) if the following steps are performed: 1. Set Edge as the default browser 2. Install and open Firefox MSIX without this patch (2024-01-04) 3. Set Firefox MSIX as the default browser (at this step Firefox will not be displayed as default in the Preferences page) 4. Download the latest Firefox MSIX build and click to update it. 5. Open the Preferences page and observe that Firefox is not the default browser. 6. Setting Edge as default and the Firefox MSIX again will still reproduce the issue. This issue can be seen only if Firefox is updated from a bad build where this issue was already reproduced on stations where Microsoft rollout is active. Uninstalling and reinstalling Firefox MSIX fixes this issue even on an affected Firefox profile. Otherwise clicking the Make default button with Firefox 123.0a1 (2024-01-08) MSIX fresh installation will now open the Default Apps Window on Windows 10x64 22H2 and Windows 11 23H2 (with and without rollout) and the default browser will be changed to Firefox only after clicking the Make as default button from the Default Apps window changing the (HTTP, HTTPS, HTM and HTML types as expected). Should we file another issue for this specific scenario fpor tracking purposes? We don’t see any error in the browser console, should we see one there or in some other place? Thank you!