It takes a long time for Firefox 78.02 on Mac 10.12.6 to bring up the print dialog box.
After updating to the latest Firefox 78.02 on Mac 10.12.6 the print dialogue box takes over 30 seconds to appear on the screen - when I select the print icon within the browser. Command P brings the dialogue box up as I would expect. I tested in Chrome and printing from a pdf in the browser (as several sites use for printing invoices) the dialogue opened immediately (the first time I've printed from Chrome with my current printer of 3 years). I did two steps of cleared and reset (two different steps) printer data (found my profile folder, reset the printer settings as per described) and after closing and restarting (several times) there are no changes. Any ideas as to fixing this? Thanks,
Opaite Mbohovái (1)
Make sure all software is up to date.
Start Firefox in Safe Mode {web link}
A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?
https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster
https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix
https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram
https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding
https://support.mozilla.org/en-US/kb/firefox-takes-long-time-start-up
https://support.mozilla.org/en-US/kb/quick-fixes-if-your-firefox-slows-down