The WriteAlt Firefox Add-on helps you identify website images, detect missing alt text, and generate AI-powered image descriptions without leaving your browser.
Whether you're reviewing your own website, auditing client projects, or improving accessibility compliance, WriteAlt provides a faster way to create image alt text at scale.
Install the WriteAlt Firefox Add-on
Install the add-on from Firefox Add-ons:
https://addons.mozilla.org/en-US/firefox/addon/writealt-ai-alt-text-generator/
After installation, pin the WriteAlt icon to your Firefox toolbar for quick access.
Connect Your WriteAlt Account
To generate AI alt text, connect your WriteAlt account.
- Open the WriteAlt Add-on.
- Click Settings.
- Copy your API key from:
https://writealt.com/dashboard#settings/api
- Paste the API key into the add-on settings.
- Save your changes.
New WriteAlt accounts receive 25 free trial credits.
Scan Images on Any Website
Visit any webpage and open the WriteAlt Add-on.
Click Scan to analyze images on the current page.
WriteAlt automatically detects available images and displays them inside the add-on for review.
This works on:
- Blogs
- Ecommerce stores
- Business websites
- Landing pages
- Documentation sites
- Portfolio websites
Focus on Images Missing Alt Text
Accessibility reviews often involve large numbers of images.
WriteAlt includes a filter that allows you to display only images that currently have no alt text.
This helps you quickly identify content that needs improvement instead of manually reviewing every image on a page.
Select Images Individually or in Bulk
After a scan completes, choose which images to process.
You can:
- Select a single image
- Select multiple images
- Select all detected images
This makes WriteAlt useful for both quick edits and large-scale accessibility reviews.
Generate AI Alt Text in Seconds
Once your images are selected:
- Choose a language.
- Optionally add SEO keywords.
- Click Generate Alt Text.
WriteAlt analyzes each image and creates descriptive alt text automatically.
Generated descriptions appear directly inside the add-on and are ready to copy immediately.
Support for 130+ Languages
WriteAlt can generate alt text in more than 130 languages.
Popular options include:
- English
- Spanish
- French
- German
- Italian
- Portuguese
- Dutch
- Japanese
- Chinese
- Arabic
This makes the add-on useful for multilingual websites and international content teams.
Add SEO Keywords
You can optionally guide generation with keywords related to your content.
Examples include:
- running shoes
- coffee machine
- luxury apartment
- travel destination
- restaurant
- digital marketing
This helps create alt text that is both descriptive and relevant to the page.
Copy or Export Results
Generated descriptions can be copied instantly for use in your website or CMS.
WriteAlt also stores recent generations locally and allows you to export history as CSV for:
- Accessibility audits
- SEO reporting
- Website maintenance
- Team collaboration
- Client projects
Why Use the WriteAlt Firefox Add-on?
WriteAlt helps simplify image accessibility workflows directly inside Firefox.
Key features include:
- Scan images on any webpage
- Detect missing alt text
- Bulk image selection
- AI-powered alt text generation
- Support for 130+ languages
- SEO keyword guidance
- One-click copy
- CSV export
- Local history
Make Website Accessibility Easier
Install the WriteAlt Firefox Add-on, connect your API key, and start generating AI-powered alt text directly from Firefox.
It's a simple way to improve accessibility, maintain image SEO, and manage image descriptions across websites without leaving your browser.
