gnome-shell-extension-mpris-indicator-button VS blur-my-shell

Mpris Indicator Button is pretty cool too, but seems to lack a hot key to display it.

I also use the mpris indicator extension myself and that particular dev uses Fedora (or sometimes Ubuntu), and they've said in the past they can't update the extension until Gnome 43 hits, so since Fedora is still delayed to mid-November, that extension won't be officially updated just yet. But if you check their GitHub they have a "crude" master update for Gnome 43 you can use if you really want to, but just know it's not release ready yet.

Extensions: Blur my Shell, Tray icons Reloaded, Clipboard indicator, GSconnect, MPRIS Indicator Button, Night Theme Switcher, Color Picker

There are at least two extensions which do that (for Gnome 40): MPRIS Indicator Button and Media Controls.

Since Waterfox is based on Firefox and the MPRIS implementation of the latter seems optimal I suppose something is "missing"(?) in Waterfox sourcecode, I use the "MPRIS Indicator Button" GNOME shell extension and it's always worked flawlessly with Firefox but it never did with Waterfox .

GNOME Extensions : quick-settings-tweaker, appindicator and KStatusNotifier, arcmenu, blur-my-shell, dash-to-panel, forge, gsconnect, just-perfection, show-desktop-button, space-bar, user-themes and vitals

You can install blur my shell extension to modify the look.

if you want blurred backgrounds, the extension blur my shell will work.

Why don't you just look at the source code? https://github.com/aunetx/blur-my-shell

Blur my Shell - Blurs the background in the overview.

dnf install gnome-browser-connector Firefox extension: {addons.mozilla.org} - Resource Monitor • Show system resources in the top bar - User Themes • Custom themes (may break some things) - Dash To Dock • turns the application launcher into a macos style dock - Blur My Shell • make the UI glassy

In my case, I'm using the Blur My Shell extension, so it basically takes whatever background image I have and places it in the overview with a blur effect (though you can also remove the blur completely and just use the extension to set your background as your overview background). By default it will blur a lot of things around your desktop, like the top bar, for instance— just disable anything you don't want; I personally only leave the Overview blur active.