I have exactly the same issue as Lezboyd above. ESET banking security worked initially with Firefox 64bit (my default browser) in Win10.
Then a month ago it started to get very slow to load - like 'go out & make a cup of tea while you're waiting' slow. Bad enough, but I could then leave the ESET window open for use with other accounts later.
However, since APRIL 1, I have the same issue as Lezboyd. Can't open ESET secure browser in Firefox at all.
I performed the change as suggested on hxxp://support.eset.com/alert6383/ . No different. I then refreshed Firefox with a new default profile. No change. I then removed Firefox totally using Control Panel & deleted all Mozilla entries in \AppData & then re-installed the latest version of Firefox from scratch creating another new profile. (Admittedly I did not check whether Mozilla references were deleted from Win10 registry.) But still no change.
All other Firefox services & performance are running as normal.
Secure banking still works fine with Chrome & MS-Edge but everything else on our PC is set up to run through Firefox.
Help?
