First off, heres my device info: '''Device name: HP Spectre Convertible Model 15-ch011dx Processor Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz 1.99 GHz Installed RAM 16.0 GB (15.8 GB usable) Device ID F3EDBCEE-137F-4854-B06C-912570DD1DB5 Product ID 00325-81213-26880-AAOEM System type 64-bit operating system, x64-based processor Pen and touch Pen and touch support with 10 touch points ''' Every time i use firefox with even one tab open i end up with extremely high CPU usage-50% or more on average. It causes the exact type of issues that one would expect, and after spending a hours and hours over the last month looking for solutions and implementing anything promising, it hasnt improved. Ive done config edits, countless cache clears, memory snapshots via devtools, and many many other things that have been recommended to me and nothing has helped. running the browser in troubleshoot confirms the problem isnt related to extensions/add-ons or anything like that, because cpu numbers are identical to those seen normally. increasingly i am convinced that this has to be an issue on the mozilla side. reddit confirms i am not alone in struggling with this, not by a long shot.....pls help!