Why this is a good first issue
Firefox's private mode restrictions may require special handling for the extension.
AI Summary
The issue involves ReactDevTools not functioning in Firefox's private windows due to browser-specific restrictions. The solution likely requires understanding Firefox's extension permissions in private mode. The main blocker is determining if this is a ReactDevTools implementation issue or a Firefox limitation.
Issue Description
Website or app
reactjs.org
Repro steps
- Install the ReactDev tools extension for Firefox ( I am running Firefox Dev edition Version 104.0b5 on Debian-Linux)
- Allow the extension to run in private WIndows by going to Add-ons and themes (Ctrl + Shift + A)
- Visit any website running a development or production of React in Firefox(I have tested Firefox dev Edition and FirefoxESR)
- Open Firefoxdevtools and visit the components tab added by the Reactdevtools extenstion
- I have tested a local dev build and a production build of React, and weirdly it works in non-private windows. But in Private windows, it doesn't see that the page uses React.
- Below is a screenshot of what I see on both websites

How often does this bug happen?
Every time
DevTools package (automated)
No response
DevTools version (automated)
No response
Error message (automated)
No response
Error call stack (automated)
No response
Error component stack (automated)
No response
GitHub query string (automated)
No response
GitHub Labels
Type: BugStatus: UnconfirmedComponent: Developer Tools