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Norton toolbar and Identity Safe
I have found the cause of page jump on browsers, and crashes or time outs when reading articles.
After the March 2018 update for toolbar and safe search extensions 4 count! and since uninstalling all and reinstalling.
I finally gave up and removed them from Chrome and Internet Explore 11. Ta dah My browsers now work like they should:) fast and efficient no page jump! I did lose the use of Identity safe:( So I will just not use the extensions for toolbar as it was the cause:(