After the 6/16/25 update, pressing the back button on pages with no history now closes the tab before opening the home page, unlike before. This change removed a useful behavior for opening multiple tabs and avoiding accidental closures. Please consider reverting it or making it optional via a setting.

This began for me with V140.0.

When viewing one tab of several, using the back button at the bottom of the Android screen would go back through the pages in that tab until leaving the original page. The next "back" would go to a blank home tab, leaving the previous tab intact, and then one more "back" would exit to the Android home screen. Going back into Firefox would bring up the last open tab (prior to the blank one) with all the other previous tabs still intact.

As of V140.0, as noted above, going back from the original page in a tab closes that tab rather than just exiting it. Going back into Firefox then puts you into another previously opened tab.

On Android, this makes exiting and reentering Firefox a lot more difficult.