How can I get rid of the warning message "A web page is slowing down your browser"? It pops up constantly.
After upgrading to Firefox 57, I constantly get this message in a yellow bar on many tabs, especially Gmail, which I use all the time. How can I disable this nagging message? Alternatively, how can I increase the length of time that Firefox will wait before nagging me? It's making Firefox unusable. BTW, the browser is not unresponsive or sluggish in any way, although that has happened before. It's just nagging me about a problem that I don't see happening, and I want the message to go away, preferably forever.
After upgrading to Firefox 57, I constantly get this message in a yellow bar on many tabs, especially Gmail, which I use all the time. How can I disable this nagging message? Alternatively, how can I increase the length of time that Firefox will wait before nagging me? It's making Firefox unusable. BTW, the browser is not unresponsive or sluggish in any way, although that has happened before. It's just nagging me about a problem that I don't see happening, and I want the message to go away, preferably forever.
Opaite Mbohovái (2)
Does this problem occur in Safe Mode? To start in Safe Mode:
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:
- Click the menu button
, click Help 
and select Restart with Add-ons Disabled.
Try to disable accessibility services in Firefox.
- 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