The webRequestBlocking api, which allows the extension to inspect all request/responses in real time and act on them. With manifest v3 the extension can only supply a list of expressions to block, and the expressions that can be used is very limited.
The webRequestBlocking api, which allows the extension to inspect all request/responses in real time and act on them. With manifest v3 the extension can only supply a list of expressions to block, and the expressions that can be used is very limited.