Gecko Drwxr-xr-x May 2026

Want to see for yourself? Use find and ls together:

find / -type d -name "gecko" -exec ls -ld {} \; 2>/dev/null

This command:

Sample output:

drwxr-xr-x 3 root   root   4096 Feb 20 09:42 /usr/lib/firefox/gecko
drwxr-xr-x 2 user   user   4096 Mar 01 15:22 /home/user/.cache/mozilla/gecko

If a gecko cache directory has incorrect permissions (e.g., drwxr--r--), Firefox might fail to create necessary lock files.

Fix:

chmod 755 ~/.cache/mozilla/firefox/*/gecko

Gecko is the name of the browser engine developed by Mozilla. It powers:

From a filesystem perspective, “gecko” often appears in: gecko drwxr-xr-x

When you see “gecko” in a terminal listing (ls -l), it usually refers to a file or folder related to Mozilla software.