Mitigating Browser Throttling:
Firefox: (After version 58)
- Go to [about:config] in the browser address bar
- search for "dom.timeout.enable_budget_timer_throttling"
- set value to false
Chrome:
- Go to [chrome://flags] in the browser address bar
- Search for "Calculate window occlusion on Windows" and set value to disabled
- (Optional on newer browsers) Search for "Enable occlusion of web contents" and set value to disabled
Edge:
- Go to [edge://flags] in the browser address bar
- Search for "Calculate window occlusion on Windows" and set value to disabled
- (Optional on newer browsers) Search for "Enable occlusion of web contents" and set value to disabled