Firefox version 142.01. After the update I find that Firefox opens normally with tabs visible as normal. When I use the > button to scroll to tabs not visible, the tabs scroll as normal but as soon as I release the mouse button they immediately and rapidly scroll back to the original position. This means I am unable to access many of my tabs. I have searched for information on this but have not been able to find anything specific. I have cleared cookies etc., refreshed Firefox, used a different mouse all to no avail. Another issue is that when trying to select which topic best describes my problem, the pop up only flashes on the screen and when it does stay on, it vanishes again when I try to select an issue. I managed to select the one shown but it was the only one I could access. I don't know what else to do. Any help will be gratefully received. Thanks. Owen