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Lumosity keeps causing the browser to hangup

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I have been playing the Lumosity brain training games for years. But recently every time I play a game the browser stops working, just hangs up. I have to do control/delete to get out of the hang up. I have been working with Lumosity but they seem to think it is the browser plus flash that is causing the issue. Lumosity is transiting away from flash, but that won't be complete until sometime in 2020. In the meantime I would like to keep using the Lumosity site so I am requesting your help in resolving this browser hanging up issue. Lumosity is the only site that the browser stops working all of the time and just freezes up. All of my software is up to date. Thank you for looking into this issue and providing a solution.

I have been playing the Lumosity brain training games for years. But recently every time I play a game the browser stops working, just hangs up. I have to do control/delete to get out of the hang up. I have been working with Lumosity but they seem to think it is the browser plus flash that is causing the issue. Lumosity is transiting away from flash, but that won't be complete until sometime in 2020. In the meantime I would like to keep using the Lumosity site so I am requesting your help in resolving this browser hanging up issue. Lumosity is the only site that the browser stops working all of the time and just freezes up. All of my software is up to date. Thank you for looking into this issue and providing a solution.

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Does the website use flash or the HTML5 player?

https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues


Please provide a public link (no password) that we can check out. No Personal Information Please !

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Lumosity is transiting away from flash, but that won't be complete until sometime in 2020. So, yes, flash-player is still be required. Checked out the link but I have already done everything that is listed there.

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Try to disable accessibility services in Firefox.

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window
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Guess I'll try safe mode, but the last time I used safe mode I received error after error. Don't recall what the messages were. Will advise later.