Using ‘weston’ compositor (windows manager) on CentOS Stream 9.
In Mozilla products, Firefox and Thunderbird, the hamburger (three lines) menu buttons do not register.
I can open the menus, but clicking on for example ‘downloads’ or ‘quit’ does not register.
Also I can get as far as trying to install UBlock Origin (extensions) but the ‘add’ button which drops down from the top task bar does not register.