Miscellaneous Tweaks for Firefox (and Derivatives)

Disable executable warning for MSIs: browser.download.skipConfirmLaunchExecutable
Disable middle mouse paste: middlemouse.paste
Prevent website auto-refresh: accessibility.blockautorefresh

Linux Laptop

Disable overly-excitable pinch-zoom: apz.gtk.touchpad_pinch.enabled

Zen Browser

Hide workspace indicator: zen.workspaces.show-workspace-indicator
Re-enable new tab: zen.urlbar.replace-newtab