You can Export your Bookmarks from Firefox to Chrome or Vice versa .It might help https://support.mozilla.org/en-US/questions/913112 Or else you can use LastPass; KeePass also you can use Dropbox

Hi Matt0926, it's an interesting question. I don't know whether Mozilla will do that, but there is a way for a third party developer to do something. According to a Mozilla person in the following thread from 2016, it would be a lot of work:

https://www.reddit.com/r/firefox/comments/5fjd7y/how_would_it_be_to_have_a_firefox_sync_extension/

(Un)fortunately, extensions cannot touch passwords, so this might be limited to bookmarks, history, open tabs, and other things there are APIs to access. Not sure it's worth it.

If somone can make an extension for it that would be great. It’ll be really convenient for me. Otherwise I want to pass my feedback request to the Mozilla developers.

Matt0926 said

If somone can make an extension for it that would be great. It’ll be really convenient for me. Otherwise I want to pass my feedback request to the Mozilla developers.

Of course. To submit suggestions for feature changes in future versions of Firefox, you can try one or more of the following:

• Feedback: https://qsurvey.mozilla.com/s3/FirefoxInput/
• Discourse: https://discourse.mozilla.org/c/firefox-development
• Reddit: https://www.reddit.com/r/firefox/
• Twitter: https://twitter.com/firefox
• Facebook: https://www.facebook.com/Firefox