This has been verified as fixed on Nightly 135.0a1(2024-12-15). The profile avatar is shown as the favicon in the edit, customize, or delete profile pages.
Bug 1927572 Comment 5 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
This has been verified as fixed on MacOS 13.2.1 and Windows 10x64 using Nightly 135.0a1(2024-12-15). The profile avatar is shown as the favicon in the edit, customize, or delete profile pages.