Gecko Drwxr-xr-x -

drwxr-xr-x 2 user user 4096 Mar 10 14:32 gecko Here, gecko is a subdirectory used to store engine-specific cached data for fast startup or content rendering. GeckoDriver is a proxy for using Firefox with Selenium (automated browser testing). A typical installation might show:

drwxr-xr-x 2 root root /snap/firefox/current/usr/lib/gecko This directory contains engine resources that Firefox uses to render web pages. If you compile Firefox from source (Mozilla’s own build system), you’ll often see a obj-* directory containing stage folders like: gecko drwxr-xr-x

sudo chmod 755 /path/to/gecko If a gecko cache directory has incorrect permissions (e.g., drwxr--r-- ), Firefox might fail to create necessary lock files. drwxr-xr-x 2 user user 4096 Mar 10 14:32

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. If you compile Firefox from source (Mozilla’s own

ls -l /usr/local/bin/geckodriver But if you examine support directories: