Why I cannot see multichoice this quiz on water/firefox?


Why I cannot see these quizs on water/firefox?





I am sure some days ago I created some multichoice quizes and I could see them without problem now I can not see them on water/firefox too.


Thanks for your attetion and answer

water/firefox do not show the multichoice quiz.
BV52's picture

Hi salambazan,

I am unable to reproduce the issue that you mentioned above. In order give your bug report the best chance of getting answered, please include the following information:

  1. Steps to recreate the bug
  2. Platform you're using: Drupal, Wordpress, Moodle (version number would be helpful as well)
  3. Mobile or Desktop
  4. Browser: Firefox/Waterfox version
  5. H5P plugin version
  6. H5P content type version
  7. Screenshots if it's a visual problem
  8. Error logs in the browser console (Ctrl+Shift+J)

The more information you provide, the quicker the community will be able to fix it and the quicker you'll have a working solution!

Let's use this thread to troubleshoot this concern.


THe problem was adblock. I disabled it. Thanks

I have the same problem on one of my computers. Both computers have Windows 10 and Firefox v. 57.0.4 but on the laptop I can see the page https://h5p.org/multichoice as normal, but on the desk computer I see the page without H5P content, as shown in the attachement.

I did not have this kind of a problem last Friday (12.1.2018).


BV52's picture

Hi Tove,

Can you please verify if you have uBlock Origin plugin installed in Firefox? Another user is reporting this issue and he found out that the said plugin may be interfering with the content.



I have Adblock Plus and that was apparently the problem. Now it's disabled and everything work fine again.

But I also have Adblock Plus installed on the other computer (same version on both computers), and there I don't have the problem. Strange, but if the problem occurs on that computer too, I'll know how to fix it... =)

Thank you so much for your help!



otacke's picture

I think this is something that should be looked into. If h5p.org or some of its mechanisms for some reason ended up being blocked by adblockers, this would be very nasty.

BV52's picture

Hi Everyone,

Thank you for the information. I am unable to reproduce the issue on my side with uBlock Origin plugin installed in Firefox. Please check if there are any error logs in the browser console (ctrl+shift+J).


otacke's picture

If it is related to adblocking, then it might depend on which filter list you're using. I think there are several lists that you can choose from in AdBlock Plus and uBlock Origin.

It doesn't matter what list we're using. It's about the content consumers.

Anyways, this can be fixed by changing the <iframe> src to "" instead of "about:blank".

BV52's picture

Thank you for the additional information. The core team is looking into creating a way to fix the issue and you can follow the progress here.


icc's picture

EasyList has fixed this in 9557d76. This should no longer be an issue.