Yes, a screencast would be nice, but more than that, there's no Privacy Policy?
Edit: there is, but they don't link to it on the homepage
Edit: there is, but they don't link to it on the homepage
If this is the company's approach on handling very private user data (ie. the contents of a number of websites they visit, including facebook, airbnb, office365, all of google.com), then this is a hard pass from me, and a huge red flag.
EDIT: here's a list of all sites the extension accesses: https://paste.q3k.org/paste/uj-GbID4#g7IYwrXiF6zXlnlxQYguMlr...
EDIT2: looking at the source code of the extension (extracted from the source map), it at least tracks and sends off any tab hostname (or URL?) you've visited: https://paste.q3k.org/paste/gxklokkF#055mmZ9Qu-zeiAwXGpWqSpw... , for any of the URLs in the allowed URLs list (which in turn has some websites whitelisted that you really might not want others to know you have visited)
EDIT3: if I read the code correctly, they actually send off the entire URL, not just the hostname. But someone would have to check this in practice to be sure.
I think you generally want to stick to sites that are both public and consumption oriented. News sites and places like Wikipedia are the obvious examples. Social media is a little more questionable since there is a mix of public and private data. I think an ideal system would break sites out into categories like news, education, pop culture, social media, etc. You then allow the users to either turn off a category as a whole or provide an advanced mode to manually disable individual sites. Although it has been a while since I messed with browser extension permissions so I don't remember if these permissions can even be set on a conditional basis. Either way, there can always be an option in the extension settings to ignore those pages even if the browser technically gives you permissions to them.