Follow along with the video below to see how to install our site as a web app on your home screen.
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You ask how to stop them, but use one in your post?
Anyway, simple google search and there is a plug in you can load. Here;s the link: https://chrome.google.com/webstore/detail/gif-stopper/eaebhojnielfeoillcfnbmkgliokndkm?hl=en