Drwxr-xr-x | Gecko

drwxr-xr-x 15 user user 4096 Jan 01 12:00 gecko That directory holds object files, JavaScript engine components, and layout engine code. The permissions drwxr-xr-x are not accidental. They serve specific security and operational purposes:

chmod 755 gecko # drwxr-xr-x After changes, restart Firefox or your Selenium script. While not crucial to permissions, it’s worth noting: the Gecko engine was named after the gecko lizard , known for its ability to cling to surfaces. The idea was that the browser engine would “stick to web standards” just like a gecko sticks to walls. gecko drwxr-xr-x

chmod 755 ~/.cache/mozilla/firefox/*/gecko Snap packages run in strict confinement. If a gecko directory inside /snap/firefox/current/ accidentally gets changed, the system may reset permissions on update. drwxr-xr-x 15 user user 4096 Jan 01 12:00