Recently Gmail started freezing for 5-10 seconds after I open emails. It becomes completely unresponsive, no scrolling, no nothing. I can switch tabs and applications. I'm using Chrome and I haven't tested in other browsers but it's definitely happening on at least two computers.
Gmail – How to stop Gmail from freezing when I open emails
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Best Answer
Turning off the people widget in Gmail's settings fixes this.
Credit goes to Song Zheng for figuring this out and posting about it: http://songzdev.quora.com/Gmail-slow-and-sometimes-freezing-Solution?srid=uUcK&share=1