When I clicked the element with “” key, the right panel refused to appear.
Sorry for m poor English.
(btw, your description of those bugs is very comprehensible – thanks a lot and don’t worry about your english)
Do you see errors in the Browser Console when clicking empty-string entries?
I didn’t. Nothing happened when I clicked the IndexedDB element with “” key, and the browser did not crashed.
Thanks a lot for the example @lanesun
I was able to reproduce and filed https://bugzilla.mozilla.org/show_bug.cgi?id=1613356 to take care of this.