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 You should disable all browser addons/extensions. I see a smiley face icon at the top right and there's probably more.
 Browser addons, in addition to interfering with how websites work and often hiding important buttons, are a security risk. The makers of the addons have access to every password you type, every form that is autofilled with a password, etc. Our advice on browsers is: Use Chrome, uBlock Origin (a good adblocker), and nothing else.
 
 Paste the following into Chrome:
 chrome://extensions/
 
 And remove everything other than uBlock Origin
 Also safe is anything created directly by Google such as the Chrome Apps: Docs, Sheets, Slides
 
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				Computing the probability that at least one of the following events will occur: 
P(a or b ... or z) = 1 - P(!a and !b ... and !z)
Probability |