Failed to bypass anti-dev tools with Lbrewolf

[Zai-Kun]

As you mentioned in the blog post, I've installed Librewolf 131.0.3-1 and edited the config (about:config), but I still can't bypass it. Also, I have an unpatched version of Firefox on my computer; could it be interfering?

The website i used to test dev tools detection: https://blog.aepkill.com/demos/devtools-detector

[Blatzar]

I am not sure about the case sensitivity in about:config, but I am still able to replicate the issue!

Neither patch seems to be activated in the latest Librewolf version, but I cannot find any changes in the Firefox source code nor any explicit deactivation in the Librewolf source code. Something is broken and I don't know from where. I will try to compile Firefox tomorrow with the custom patches to see if the issue lies with Librewolf or Firefox and make an appropriate issue. Thank you for pointing out the issue!

[Zai-Kun]

I am not sure about the case sensitivity in about:config, but I am still able to replicate the issue!

Neither patch seems to be activated in the latest Librewolf version, but I cannot find any changes in the Firefox source code nor any explicit deactivation in the Librewolf source code. Something is broken and I don't know from where. I will try to compile Firefox tomorrow with the custom patches to see if the issue lies with Librewolf or Firefox and make an appropriate issue. Thank you for pointing out the issue!

Great! Thank you so much, and good luck!

[Zai-Kun]

It seems like the issue was with the case sensitivity in about:config for me. Lowercasing "LibreWolf" fixed the issue for me; now websites can't detect if I have dev tools open or not.

[Blatzar]

Ugh, looks like a nixos-specific issue then, the patches work on windows too 🫠