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After update to 46.01 javascript doesn't work and videos on tumblr can't play

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  • 1 inale nkinga
  • 5 views
  • Igcine ukuphendulwa ngu cor-el

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After updating firefox to version 46.01 I am no longer able to play videos on tumblr, I can watch videos on

youtube though without issue.

I tried starting browser in safe mode all plugins disabled, before that I tried resetting browser, reinstalled

flash to the latest version, turned off hardware acceleration setting,

I notice that links on various sites requiring javascript no longer seem to work, perhaps there may be a problem with javascript in the new version, just a reminder i already did reset the browser and that didn't fix the problem.

I also tried to clear the cache: Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now" Removed the cookies: Tools > Options > Privacy > Cookies: "Show Cookies"

I am running windows XP SP3

in about:config I changed javascript.options.shared_memory to > True

After updating firefox to version 46.01 I am no longer able to play videos on tumblr, I can watch videos on youtube though without issue. I tried starting browser in safe mode all plugins disabled, before that I tried resetting browser, reinstalled flash to the latest version, turned off hardware acceleration setting, I notice that links on various sites requiring javascript no longer seem to work, perhaps there may be a problem with javascript in the new version, just a reminder i already did reset the browser and that didn't fix the problem. I also tried to clear the cache: Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now" Removed the cookies: Tools > Options > Privacy > Cookies: "Show Cookies" I am running windows XP SP3 in about:config I changed javascript.options.shared_memory to > True

All Replies (3)

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Note the YouTube will use the HTML5 media player and not the Shockwave Flash plugin in current Firefox releases.

You can check via the right-click context menu of the player area what kind of media player is used. A Flash based player shows a context menu with the Flash version.


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 > Appearance
  • Do NOT click the "Refresh Firefox" button on the Safe Mode start window
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cor-el said

Note the YouTube will use the HTML5 media player and not the Shockwave Flash plugin in current Firefox releases. You can check via the right-click context menu of the player area what kind of media player is used. A Flash based player shows a context menu with the Flash version.

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 > Appearance
  • Do NOT click the "Refresh Firefox" button on the Safe Mode start window

NOPE.... Already said I tried that, didn't work. Thanks anyway

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Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?