**What kind of change does this PR introduce?**
I have browsers pool in some cloud. I want that only users with access
will be able to connect to them. So they must provide token through
headers. But puppeteer does not allow to send headers when connected to
browser by ws connection. So I added this feature.
Closes#7218
This PR updates the docs regarding configuring puppeteer. In addition,
some changes have been made to the documentation generator to show
default values on the documentation site.
Also fixes: https://github.com/puppeteer/puppeteer/pull/9144
This PR implements automatic detection of the Firefox product when the `.connect()` method is used. This partially undoes the breaking change in https://github.com/puppeteer/puppeteer/pull/8520 but it's also a breaking change on its own since we don't accept an explicit product name anymore (it does not look like it was used anyway).
