Favicons for bookmarks with containers disappear

Favicons for bookmarks assigned to a container disappear after browsing for a while, reverting to Firefox's default "globe" favicon.

Only bookmarks with no assigned container retain their favicon.

The picture below depicts the same bookmark (https://mail.google.com/), after assigning it to:

  • no container (left)
  • the "Personal" container (middle)
  • the "Work" container (right)

and browsing through them:

2023-01-05_11-58

Firefox version: 108.0 (64-bits)

Installed extensions:

  • Auto Cookie Optout
  • Auto Tab Discard
  • Bypass Paywalls
  • ContainMarks
  • Firefox Multi-Account Containers
  • GNOME Shell Integration
  • uBlock Origin