FF84 Partially Breaks "Switch active tab by scrolling"
Steps to reproduce
Case 1:
Enable "Switch active tab by scrolling" and "Always".
Open enough tabs such that the vertical scrollbar appears.
Use the mouse wheel while hovering over Tab Center Reborn.
The tab will switch to the next or previous one, but the Tab Center Reborn frame will also scroll vertically, like a web page would if the wheel were used.
Case 2:
Enable "Switch active tab by scrolling" and "With Ctrl".
Use the mouse wheel while hovering over Tab Center Reborn.
The tab will switch to the next or previous one, but the Tab Center Reborn frame will also zoom in or out by one step, like a web page would if ctrl-wheel were used.
Expected behavior
The tab should switch to the next or previous one, and the Tab Center Reborn frame should not scroll or zoom.
Platform
Windows 10 x64 / Firefox 84. This behavior did not occur in Firefox 83 and the same version (2.2.0 / October 17 2020) of Tab Center Reborn.