Note

• When opening Beta v79.0b6, Release v78.0.2 and esr v68.10esr, the user will notice that these 3 different versions of Firefox will be grouped into the same icon in the taskbar.

Affected versions

• Beta v79.0b9
• Release v78.0.2
• ESR v68.0.2esr / v68.10esr

Affected platforms

• Ubuntu 20.04 LTS

Steps to reproduce

1. Open Firefox Release v78.0.2 with a new profile.
2. Open Firefox Beta v79.0b9 with a new profile.
3. Open Firefox ESR v68.10esr with a new profile.

Expected result

• These 3 browser windows of different browser versions and channels are shown each in a different taskbar entry.

Actual result

• These 3 browser windows of different browser versions and channels are shown as windows of the same taskbar entry.

Regression range

• unknown

Additional notes

• Only the Nightly is grouped as a separate application; Furthermore, if opening a second build of Nightly with a new profile, will show u0p as a separate taskbar entry than the first Nightly entry and the 3 other channels (that are grouped together).
• I give this an S3 severity level since it only affects Linux type OSes and since it does not affect the quality of the browser's services.
• Please NI me if more investigation is necessary.