I created a report on Mozilla's BugZilla to let them know as well.

GTK Source - Fedora Repository Aditional Information You can customize these values by editing theme.cursor or. The upgrade from gtk3 3.24.34 to 3.24.35 should not break the mouse cursor. Utilities for controlling the cursor style when hovering over an element. Download and Install Custom Cursor Theme Packs If the few choices available aren’t enough, you can download a third-party cursor theme pack to install on Windows. EvolutionOS EvolutionOS is a cursor set that combines minimalism with the look and style of macOS. We’ve put together a list of the best mouse cursors for Windows 10. Also note that Firefox scales the cursor down to a smaller How to install the cursors. You can customize your cursor to fit your tastes and style, and there are a lot of different options out there. At some point, the mouse cursor disappeared entirely while in the Firefox window. The custom cursor effect were going to build in this tutorial. While running 3.24.35, Firefox would only display the default mouse cursor instead of i.e changing to the link (hand) selector when hovering over a link, changing to the appropriate icon when adjusting the size of the window or even to the text selector when highlighting text or clicking in a text box. Note: this vulnerability has only been demonstrated with UnboxedObjects, which are disabled by default on all supported releases. The reason for this is two-fold: first, a bug in Firefox 1.0 (fixed in Firefox 1.5) causes the menus to disappear prematurely when the user's mouse cursor. Upgrade to gtk3 3.24.35 and check again Description A possible vulnerability exists where type confusion can occur when manipulating JavaScript objects in object groups, allowing for the bypassing of security checks within these groups.Assuming you have gtk3 3.24.34 or below installed, run Firefox v107 (either from your respective repo or the build directly from Mozilla) and examine the mouse cursor behavior.Once I reverted back to 3.24.34, the mouse cursor behaves properly. Once gtk3 was upgraded to 3.24.35, the mouse cursor behavior in Firefox broke.

Firefox is also running with MOZ_ENABLE_WAYLAND=1. I run Fedora 37 KDE (Wayland) and ran a system update today, which upgraded gtk3 from 3.24.34 to 3.24.35.

Custom cursors download for firefox