Split the #mainPopupSet CSS rule to an extra file
popups.before-ff-108.css, and adjust autoconfig.js to skip that file if
firefox is newer than >= 108.
The protection, identity, permissions and widget overflow popups were
flickering when their width was larger than the screen. This patch
bounds the width of the viewport.
It also makes the overflow menu use as much vertical real estate as
possible, as this seems to fix flickers for extensions.
Make sure the menu that gets opened when long-pressing the back button
is visible on screen. Note that this is useful not only for navigating
back, but can be used to navigate forward too, and to navigate back to
the new tab/home page.
When trying to install uBlock origin as suggested on the start page, I
found that the text of the popup is taking up so much space that the
"Add" / "Cancel" buttons are missing again. Decrease the font size even
further (like in the "Site information"), so the buttons are visible
again.
If somebody wants to improve this: maybe we could give the
popup-notification-body a fixed height instead, and make it scrollable?
Patches welcome, and see README.md for instructions how to use the
Firefox developer tools with the browser UI itself.
