Chrome tab opening, no extension

I'm getting an Adobe online help tab opened in Chrome every time I fold my Windows 10 touchscreen laptop backwards and the "autorotate on" notification pops up. I have checked my chrome extensions, and none of them are related to Adobe reader at all (I have momentum, checker plus for gmail, and ublocker). Does anyone else have this problem, and is there a way to prevent this happening? It's quite frustrating as I am automatically removed from the reader app when all I wanted to do was use my touch screen functionality.