Use updated Firefox as default browser on my Win10 desktop. Problem started in about 2wks: I open my cdn bank website, sign in with pw, get my banking items page, click on visa, and browser freezes, doesn’t let me open any of banking items. Now top of this page comes tiny msge: "This page is slowing down Firefox. To speed up your browser, stop this page. Stop" Even the SignOut spot is frozen! I dont care about slower speed , I am only using that website for a couple of minutes. I have to turn off Firefox, everything else in PC works ok. I tried MS Edge and the same bank website works perfectly (like before on Firefox)!!! I prefer Firefox security features, please help!!! If not, MS Edge is my default browser!!!