As a web dev, Chrome has better PWA support in the developer console. Lighthouse audits are also quite useful. Although Firefox's developer console is pretty good (and similar to Chrome's), then at the moment Chrome is a bit better.

I mostly use Firefox, both for browsing and development, but occasionally fire up Chrome, especially for the features mentioned above.

Features are missing in Google Aps in Firefox. I use Firefox as well, but sometimes when I want to use Google Docs, I just switch back to Chrome.