Hi, you might want to ask their forum.

It also to be an issue that only affects users who have turned off cleartype font rendering within their windows settings. So a workaround for the moment would either be to turn cleartype back on or disabling hardware acceleration in Firefox: Firefox's performance settings

Please report back if the above fixes it.

You could try this please : Go the 3 Bar Menu then Options --> General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Acceleration is for your Video Card, monitor to see if need to turn back on. https://support.mozilla.org/en-US/kb/performance-settings

Optimize Win10 https://www.tenforums.com/tutorials/26120-optimize-performance-windows-10-a.html

FIREFOX TO SLOW Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there ?

• https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding
• 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

Please let us know if this solved your issue or if need further assistance.

Cleartype was already on when I checked it. I followed the next idea and switched from the recommended level 4 down to level 2. As yet I have not crashed and had to restart, but within a few minutes I am going so slow that I have to reboot anyways. I'lll type a message and the characters will appear and a rate of 1-2 per second. Trying to move a held button to collect multiple buildings or individually collecting again is several to 5 seconds per building. I'm going to bump it up to 3 and see if that changes things much and will report back then.

OK, I had to do the same for awhile on my system go back and forth until settled down and am back at 4. Though surprising with 32 gigs of ram. Since do not have send info turned on with in Firefox before you posted I have no information on your video card drivers. These should take the brunt of a game. I would suggest looking for updated drivers. https://www.howtogeek.com/135976/how-to-update-your-graphics-drivers-for-maximum-gaming-performance/

Uninstall and turn off anything and everything in Win10 on the start button that you can and then go to settings and go through each one. Anything turned on that do not use or let have permission takes ram.

Please let us know if this solved your issue or if need further assistance.

What is the Firefox memory usage when this starts happening if you check this via the builtin about:memory page?

You can also check for accessibility related issues.

• Options/Preferences -> Privacy & Security -> Prevent accessibility services from accessing your browser
• https://support.mozilla.org/en-US/kb/accessibility-services
• http://techdows.com/2017/08/firefox-57-prevent-accessibility-services-accessing-browser.html