This bug was filed from the Socorro interface and is report bp-45bf8df3-af5b-48a5-930d-4162d2150122. ============================================================= I can open the Lastpass addon just fine, but as soon as I attempt to enter my password (as the bug suggests on keydown) Firefox crashes immediately.
This is more likely a dup of Bug 1124408, which is related to password popup window.
Mistakenly filed against Firefox 38 and should be instead 38 Branch. Sorry for the spam. dkl