Found the issue. since 2015/2016, Chromium started failing silently to import passwords from Firefox and the bug is still open in the tracker. nice one googol

Yes. are you behind a private network ?

any news on the matter? how can I help debugging the issue?

Also, Opera doesn't ask me to save any password from any site ! Can someone help ? Thanks

Hi, I'm on Yosemite 10.10.5 (14F2411) and Opera Beta Version:57.0.3098.53.

Opera always fails to import passwords from Firefox 63.0.3 although it imports bookmarks just fine. I've tried Opera normal but could not try Opera Developer because it won't run (I'll open up a thread related to that situation later if needed).

Many thanks in advance.