Experimenting with local alt text generation in Firefox Nightly – Mozilla Hacks - the Web developer blog
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Firefox 130 will feature an on-device AI model that automatically generates alt-text for images, integrated into its built-in PDF editor.

New accessibility feature coming to Firefox, an “AI powered” alt-text generator.

"Starting in Firefox 130, we will automatically generate an alt text and let the user validate it. So every time an image is added, we get an array of pixels we pass to the ML engine and a few seconds after, we get a string corresponding to a description of this image (see the code).

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Our alt text generator is far from perfect, but we want to take an iterative approach and improve it in the open.

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We are currently working on improving the image-to-text datasets and model with what we’ve described in this blog post…"

  • Kissaki@beehaw.orgEnglish
    1·
    23 days ago

    They’re starting this as an experiment in their PDF editor, yes. They then want to extend to PDF reading, and then hope to extend to the general web browsing.

    will be available as part of Firefox’s built-in PDF editor

    Firefox is able to add an image in a PDF using our popular open source pdf.js library[…] Starting in Firefox 130, we will automatically generate an alt text and let the user validate it. So every time an image is added, […]

    In the future, we want to be able to provide an alt text for any existing image in PDFs, except images which just contain text (it’s usually the case for PDFs containing scanned books).

    Once the alt text feature in PDF.js has matured and proven to work well, we hope to make the feature available in general browsing for users with screen readers.