Bug 1875465 - Part 5: Hide tab strip when full screen

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -1560,6 +1560,7 @@ abstract class BaseBrowserFragment :
             (view as? SwipeGestureLayout)?.isSwipeEnabled = false
             browserToolbarView.collapse()
             browserToolbarView.view.isVisible = false
+            binding.tabStripView.isVisible = false
             val browserEngine = binding.swipeRefresh.layoutParams as CoordinatorLayout.LayoutParams
             browserEngine.bottomMargin = 0
             browserEngine.topMargin = 0
@@ -1585,6 +1586,9 @@ abstract class BaseBrowserFragment :
                 initializeEngineView(toolbarHeight)
                 browserToolbarView.expand()
             }
+            if (requireContext().settings().isTabletAndTabStripEnabled) {
+                binding.tabStripView.isVisible = true
+            }
         }
 
         binding.swipeRefresh.isEnabled = shouldPullToRefreshBeEnabled(inFullScreen)