[TheGlav]

They're not blocking uBO, they're removing the features in the browser that allowed uBO to work by releasing new plugin APIs, "Manifest v3". They're eliminating the key APIs needed for uBO to identify things that it shouldn't load, and then not load them. Google claims this was for "performance" or "security" reasons. Of course, the only major 'performance' or 'security' affected is the ability to identify, intercept, and stop harmful or ad related downloads before they start.

[altdataseller]

Does this affect extensions that know every website you visit even if it doesnt need to know, and has nothing to do with the extension’s functionality? (ie the ones that Similarweb buys)