@JustPerfection GLib.SOURCE_REMOVE does the thing, doesn't it?

Not going to reject this one since the code was there from the old versions but you should remove the timeout in disable (extension.js line 72): https://gjs.guide/extensions/review-guidelines/review-guidelines.html#remove-main-loop-sources

As mentioned in the review guidelines: > You MUST remove all active main loop sources in disable(), even if the callback function will eventually return false or GLib.SOURCE_REMOVE. It's because the timeout can be called in lock screen when the extension is disabled (in racy situations or in case we have unwanted additional delay).