Browser restriction

I’m looking to run a five minute survey with 4500 participants. My survey only works properly in Firefox (not Chrome, Safari, Edge). Would it be possible to require participants to use Firefox, or do you think it will be difficult to recruit enough participants? Or could the sample get skewed (perhaps Firefox users differ from other users)?

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Hey @Martin_Hedesstrom, welcome to the community :tada:

As we don’t have an alternative method built-in, it is okay for you to do this type of screening in your study and ask those who fail to “Return” their submission, as long as:

  1. You make the requirements clear in the Prolific study description
  2. Only a small % are expected to fail
  3. The task is short and not too demanding for participants
  4. When they cannot continue, you ask them to return their submission. Read more about this here: Return vs. Reject: When should I ask a participant to return their submission?

Note that you can also specify device compatibility on Prolific as follows: Device compatibility.

Finally, we would ask you to run a small pilot study before launching to your full sample, to check that everything is working smoothly.

Hope that helps - let me know if you have any other questions!