Add firefox details to bounce tracking protection article

[chrisdavidmills]

Description

This PR updates the Bounce tracking mitigations article to add Firefox information and a definition of stateful/stateless bounces.

Motivation

Additional details

Related issues and pull requests

[github-actions]

Preview URLs

• /en-US/docs/Glossary/Site
• /en-US/docs/Glossary/eTLD
• /en-US/docs/Web/Privacy/Guides/Bounce_tracking_mitigations

External URLs (4)

URL: /en-US/docs/Web/Privacy/Guides/Bounce_tracking_mitigations
Title: Bounce tracking mitigations

• https://firefox-source-docs.mozilla.org/toolkit/components/antitracking/anti-tracking/bounce-tracking-protection/ (1 time) (Note! This may be a new URL 👀)
• https://privacycg.github.io/nav-tracking-mitigations/ (1 time) (Note! This may be a new URL 👀)
• https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop (1 time) (Note! This may be a new URL 👀)
• https://webkit.org/blog/8311/intelligent-tracking-prevention-2-0/ (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-11-17 10:33:21)

[mb]

Thanks for writing up bounce tracking. Looks very well written.

[pepelsbey]

Looks good! Thanks :)

[mb]

I can't click on approve on github, because

Only users with explicit access to this repository may approve pull requests.

But LGTM :)

[chrisdavidmills]

I can't click on approve on github, because

Only users with explicit access to this repository may approve pull requests.

But LGTM :)

Awesome, thanks a lot for the reviews, @mb! Merging now.