ff_version
Firefox major version to claim in the fingerprint.
Use it for: Sites that only support certain Firefox versions, or reproducing what an older Firefox user sees.
Browsers: Camoufox.
Details
- Type:
number - Default: the real Firefox major
- Example:
{"ff_version":135}
Changes the version the fingerprint reports (user agent etc.), not the actual browser build. To run an older build, use version.
A reported version that differs from the real engine is detectable.
Used in
All options: launch options.