AI Alt Text Generator for Firefox

Why choose the AltTextLab Firefox add-on?

The AltTextLab Firefox add-on brings AI-powered alt text generation straight into your browser environment — enabling content-owners, e-commerce managers, and web-teams to quickly create accessible, SEO-optimized image descriptions without switching between platforms. Whether you’re updating product galleries, writing blog posts, or managing a large content library, this add-on is designed for speed, simplicity and scalability.

Key Features

Right-click to generate – On any image within Firefox, simply right-click → “Generate Alt Text” and instantly receive AI-written alt text.

Copy-ready – The generated text is ready to paste into your CMS, content editor, storefront, or social-platform.

Works across any website – Compatible with blogs, ecommerce stores, social-media previews, landing-pages or internal dashboards.

130+ languages supported – Localize your accessibility and SEO efforts with multi-language alt text generation for global teams.

Accessibility + SEO boost – Improve screen-reader support and enhance image visibility for search engines without writing descriptions manually.

Quick Setup – ready in under a minute

1. Install the “AltTextLab AI Alt Text Generator” add-on from the Firefox Add-ons Marketplace.
2. Open the add-on’s settings: enter your AltTextLab API key to link your account.
3. Navigate to any site, right-click an image, and select Generate Alt Text.

Documentation

Need help with setup or troubleshooting?

Visit our documentation for detailed instructions and helpful tips.