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8000 Added ETP guidance issues on Codespaces documentation by thesomewhatyou · Pull Request #40902 · github/docs · GitHub
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thesomewhatyou
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Added guidance through the common issues

Why:

Most people may or may not notice, but ETP blocks Codespaces' ability to connect entirely. And for LibreWolf users like me, this can be pretty frustrating. Eventually, you can add an exception, but if people are new to LibreWolf/Firefox, they won't get the memo fairly quickly. This is why I also added a guide from Mozilla so people can make exceptions + disable it if they want. I do know very angry friends who got so enraged at this issue because they are extremely reliant on Codespaces, but I gave them the solution and it works. I feel like this commit would guide people better.

What's being changed (if available, include any code snippets, screenshots, or gifs):

* Firefox’s Enhanced Tracking Protection (ETP) can cause this error, especially in Strict mode. Add your codespace URL as an exception or turn ETP off.

* LibreWolf, however, does not have the ability to turn off ETP. LibreWolf also forces Strict mode on ETP as well, meaning you must add it as an exception. To add exceptions, go to [Mozilla's guide](https://support.mozilla.org/en-US/kb/manage-enhanced-tracking-protection-exceptions) on how to add exceptions.

Check off the following:

  • A subject matter expert (SME) has reviewed the technical accuracy of the content in this PR. In most cases, the author can be the SME. Open source contributions may require an SME review from GitHub staff.
  • The changes in this PR meet the docs fundamentals that are required for all content.
  • All CI checks are passing and the changes look good in the review environment.

Added notes about Firefox's Enhanced Tracking Protection and LibreWolf regarding connection issues.
@Copilot Copilot AI review requested due to automatic review settings October 18, 2025 00:41
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welcome bot commented Oct 18, 2025

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

@github-actions github-actions bot added the triage Do not begin working on this issue until triaged by the team label Oct 18, 2025
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Pull Request Overview

This PR adds guidance for Firefox Enhanced Tracking Protection (ETP) issues in the Codespaces troubleshooting documentation. It helps users resolve connection problems caused by Firefox's privacy features blocking Codespaces functionality.

  • Adds Firefox ETP troubleshooting guidance for connection issues
  • Provides specific instructions for LibreWolf users who cannot disable ETP
  • Includes a link to Mozilla's documentation for adding tracking protection exceptions

Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.

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Source Review Production What Changed
codespaces/troubleshooting/troubleshooting-your-connection-to-github-codespaces.md fpt
ghec
fpt
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Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server

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thesomewhatyou and others added 2 commits October 17, 2025 20:44
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
@thesomewhatyou
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i got paged during this, so my quality is kinda garbage

never push during Friday, you WILL hate yourself

@Sharra-writes
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@thesomewhatyou Thanks for the PR! I'm checking to make sure this is something we feel capable of keeping up with in the future, since edge cases and things that involve specific products that don't belong to us can be tricky to keep up to date in the documentation. This does look useful, though, so I hope we can accept it.

@signorellialain259-beep

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@thesomewhatyou
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@Sharra-writes I'm definitely gonna pop in as the updating-the-external-docs ghost, so if you ever see me again, just know I just came here to update external documentation
Have a spooky Halloween! I'm gonna be a failed workflow as my costume 😏

@Sharra-writes Sharra-writes added content This issue or pull request belongs to the Docs Content team Codespaces Content relating to GitHub Codespaces and removed triage Do not begin working on this issue until triaged by the team labels Oct 21, 2025
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