Corrected validation warnings from upload:
• (a) strict_min_version → 142.0. This clears both version warnings at once — the data‑consent key needs Firefox 140 (desktop) and 142 (Firefox for Android), so 142 covers both. Trade‑off: users below Firefox 142 won't be offered it, but that's a small, auto‑updated population. (Say the word if you'd rather use 140 and accept the Android‑only warning.)
• (b) tabGroups removed from the Firefox build. The Firefox build never requested that permission, so I dropped the API calls entirely (getGroups() now returns nothing, and the group‑change listeners are gone). That eliminates the "not supported in Firefox 121" warning at its root rather than just suppressing it. Verified: zero chrome.tabGroups references remain, and the JS still parses cleanly.

Additional notes:
• (c) the innerHTML refactor — Those ~12 warnings are the linter flagging every element.innerHTML = … in dashboard.js. Hibern8 code already HTML‑escapes the dynamic values (the esc() helper). Refactoring all 12 to DOM methods can be done at a later time.