The tour instructs new users:
Ask about... Browsers and their features relating to the use of a web application (Greasemonkey scripts for a web application, etc.)
Don't ask about... Web browsers, including features and browser extensions/add-ons
The first one says that some browser questions are on topic, the second one says that all browser questions are off-topic. It's not obvious which one has higher priority.
Should the second be qualified similarly to the first? E.g., "Don't ask about... Usage of web browsers that is not specific to a web application"
I understand this is a nuanced issue, at least according to some 5-year-old meta posts: