Checklists for software errors, setup, and tool workflows.

How to Fix Cloudflare 521 Error with Firewall Settings

If you see a 521 Web Server Is Down error when visiting your site through Cloudf...

Chrome Extensions Not Loading? Reset Chrome to Fix

You open Chrome, click the extensions icon, and nothing happens. Or extensions are grayed out, mi...

Chrome Sync Not Working After Disabling Extensions: Fixes

You disabled some Chrome extensions to troubleshoot a problem, and now sync has stopped working –...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Chrome Memory Saver Mode Not Working: Quick Fixes

If Chrome's Memory Saver mode isn't activating or saving memory as expected, you're n...

Chrome Extensions Not Loading: Quick Fixes

You open Chrome, click the extensions icon, and nothing appears—or your extensions are grayed out...