Performance Tips for Firefox New Tab Extensions: Sub-100ms Load Times

Performance Tips for Firefox New Tab Extensions: Sub-100ms Load Times Every time someone opens a new tab, your extension loads. If it's slow, they'll either disable it or dread using it. Here's how to keep load times under 100ms. Baseline: What Makes a New Tab Feel Fast? The new tab page replaces Firefox's built-in page, which is basically instant. Users will notice if yours takes more than 200ms. Aim for: First paint: Interactive: Weather data visible: Inline Critical CSS External stylesheets b