A custom firefox userChrome.css config for a multirow native horizontal tab bar with seamless switching to a sidebery vertical tabs sidebar with autohide of the native tab bar.
- Change "[Sidebery]" preface value to zero width space character
- Add expand on hover to sidebery icon-only sidebar.
- Fix window button background formatting.
- Figure out tabs bottom padding/margin.
- Create a full guide and explanation of the files