Change hypens to underscores in ic_launcher_round.png (mozilla-mobile…

…#6505)

For mozilla-mobile#6294 - When only one tab is being saved to collect…

…ion, add it to selected tabs.

For mozilla-mobile#6294 - When only one tab is being saved to collect…

…ion, add it to selected tabs.

For mozilla-mobile#6219 - Reset default setting if user opts out of e…

…xperiments

Revert sessionScopeToken to fix broken QR pairing flow

Revert sessionScopeToken to fix broken QR pairing flow

Update release_checklist with due dates

No issue: Removes feature flags for delete data (mozilla-mobile#5738) (…

…mozilla-mobile#5741)

No issue: Removes feature flags for delete data (mozilla-mobile#5738) (…

…mozilla-mobile#5741)

For mozilla-mobile#5681: Sets OPEN_TO_BROWSER false when using new ta…

…b shortcut (mozilla-mobile#5707)