If you can not install plugins and themes in XAMPP for Linux Localhost and you see this error unable to connect to the file system. Please confirm your credentials You can easily fix this error by adding this code in your WordPress wp-config.php file define( 'FS_METHOD', 'direct' ); /* That's all, stop editing! Happy publishing. */ And after adding this code if you see another following error Installation failed. Could not create directory You will have to open your WordPress directory in Linux /opt/lampp/htdocs/wordpress Now open terminal and type this command to fix the error chmod 777 -R wp-content or sudo chmod 777 -R wp-content this will solve the error. ------------------------------------------ ## 5000+ Words Guide: Jetpack WordPress vs Alternatives? How to save $111/Year? https://tocreateablog.com/jetpack-wordpress WordPress Jetpack plugin offers Hassle-free design, marketing, and security features for your WordPress websites at a very affordable price, compared to other premium plugins and themes. With Jetpack WordPress, You get everything you need to build powerful WordPress websites, in one service. ----------------------------------