I recently couldn't figure out why YouTube videos were taking so long to begin playing (I'm talking 30-60+ seconds). It wasn't my internet (high speed) nor my computer (buffy gaming computer) that was the problem. The video would load just fine when it actually started to play, but it took forever for it to buffer enough to start to play the video. I would often have to refresh the page when the video would seemingly freeze in infinite buffering.

Turns out, it was this extension all along, even though I ONLY used it to remove the trending page tab on the sidebar. How exactly does removing a tab in the sidebar even affect playing a video at all?