1873465 - [Experiment] No UTM parameters are present in the URL if the primary buttons from the "Fx Mobile" and "Pip" moments pages are clicked

Status: RESOLVED WONTFIX

(Firefox :: Messaging System, defect, P1)

Description

[Marius Coman [:mcoman], Ecosystem QA]

Attachment: rec of the issue.gif

[Affected versions]:

• Firefox Release 121.0 - Build ID: 20231211174248

[Affected Platforms]:

• Windows 11 x64
• macOS 14.1
• Ubuntu 22.04 x64

[Prerequisites]:

• Have a Firefox profile with the following prefs in the "about:config" page:
  • nimbus.debug pref set to true

[Steps to reproduce]:

1. Open the browser using the profile from the prerequisites.
2. Navigate to "about:studies?optin_slug=moments-page-january-en&optin_branch=treatment-c&optin_collection=nimbus-preview" and restart the browser.
3. Restart the browser again.
4. Click the "Try it now" primary button and observe the URL.

[Expected result]:

• According to the received documentation the following UTM parameters should be present in the URL:
  • utm_medium=firefox-desktop
  • utm_source=moments
  • utm_campaign=moment17
  • utm_content=17c-pip-en-na

[Actual result]:

• No UTM parameters are displayed.

[Notes]:

• This issue is reproducible on the "Fx Mobile" moments page regardless of which primary button is clicked.
• This issue is not reproducible on the "VPN" moments page, however in this case the UTM parameters are different from
• Attached a screen recording of the issue.

Comment 1

[BugBot [:suhaib / :marco]]

Since nightly and release are affected, beta will likely be affected too.
For more information, please visit BugBot documentation.

Comment 2

[Shane Hughes [:aminomancer]]

The UTM parameters aren't added when clicking the buttons, they should be present from the beginning. I think they are just absent from the experiment recipe, so this should be a straightforward fix.

Comment 3

[Hanna Alemu [:hanna_a]]

Thanks for filing this! We've confirmed that the utm params are working as expected on the website side, although it doesn't seem to be added when the user first clicks on the CTA. "The PIP page is an internal link so doesn't need any parameters, we can track those clicks through Google Tag Manager. And the mobile page links are all routing through Adjust.".

We can modify the test cases accordingly and close this bug for now.

Comment 4

[Marius Coman [:mcoman], Ecosystem QA]

Hi Hanna and thanks for the quick reply! Considering that the UTM parameters cannot be seen by QA during testing I will remove the specific Test Cases from the Test Suite and close this issue.