Clicking the "Privacy", "Terms" and "Forum" links from the footer of onboarding page, returns a 404 code

[SoftVision-CosminMuntean]

[Affected versions]:

• Firefox 54 and up
• Screenshots (7.0.10522)

[Affected Platforms]:

• All Windows
• All Mac
• All Linux

[Prerequisites]:

• The "xpinstall.signatures.required" is set to "false" and latest Firefox Screenshots (7.0.10522) dev build is installed on a new clean profile.
• The Onboarding tour was already visited.

[Steps to reproduce]:

1. Open the browser with the profile from prerequisite.
2. Navigate to "https://screenshots.firefox.com/" page.
3. From the footer of the page click the "Privacy", "Terms", "Forum" links.
4. Observe the browser behavior.

[Expected result]:

• You are successfully redirected to the specific pages.

[Actual results]:

• The pages returns a 404 code.

[Notes]:

• Here is a screen recording with the issue:
  

[SoftVision-CosminMuntean]

I have retested this issue on latest Nightly build and is no longer reproducible. Marking as fixed.