I love Firefox but all videos and webpages end up slowing down/buffering/lagging after a few hours. Help me ditch Chrome!

I really would love to get rid of Chrome/Edge cause i definitely like the functionality and feel of FireFox the best but as the title states without fail after a few hours my videos will just stop working/buffering, reddit wont load pages, i gotta totally shut it down and pull everything up or it is just a complete laggy mess.

What could be causing this? This issue has kept me on chrome for months, is there some setting I have turned on in the browser I'm overlooking perhaps? Anyone else have this issue and fix it?

I really would like to rid myself of Chrome but I just can't seem to find an answer for this, any assistance would be great, happy Sunday and new year to all of you!!!