[iPad] The homepage thumbnail shows the thumbnail of the last visited page

Steps to Reproduce:

1. Install FF on iPad.
2. Open a few different tabs.
3. Open tab tray view. Open homepage.
4. Return to tab tray and visit another tab (like wikipedia). Return to tab tray.

Expected Result: The thumbnail is correctly displayed.

Actual Result: The homepage thumbnail shows the thumbnail of the last visited page. (wikipedia)

Note: The homepage thumbnail turns blank when another tab is opened from tab tray and visited before returning to tab tray view.

Device & Build Information:

• Devices: iPad Mini A17 Pro (26)
• Build version: v143.2 (62039)

:information_source: Reference Person

+@Foxbolts+

┆Issue is synchronized with this Jira Bug