Skip to content
Proso
  • Features
  • Pricing
  • Support
  • Privacy
  • PT
Install for Firefox

Support the developer behind Proso

Proso is built by solo developer Pedro H S Balbino. Support helps maintain the reader, improve accessibility, and publish Firefox updates. Installing the extension is free; provider usage and managed plans may cost money.

Where your support goes

  • GPU time and local speech-model runs used in quality testing.
  • Firefox Add-ons (AMO) review and publication cycles.
  • Accessibility testing and fixes for screen readers and keyboard navigation.
  • Managed API infrastructure for readers using premium voices.

Support is a donation: it does not buy credits, unlock features, or replace the Paddle subscription — it simply supports the builder.

PIX Brazil · no fees

PIX QR code for donations

PIX

The PIX key is being configured. Check back soon.

Ko-fi International

A one-time coffee or a monthly support — card or PayPal, no platform fee.

Support on Ko-fi

GitHub Sponsors

For those who live on GitHub: direct monthly support, 0% platform fee.

Sponsor on GitHub

Quick questions

Donation or subscription?
Donation. It grants no credits and changes nothing in your plan. Managed subscriptions are separate; see the pricing page for availability.
Can I support from outside Brazil?
PIX works only from Brazilian accounts. International options (Ko-fi and GitHub Sponsors) appear here as soon as they are published.
Do I get an invoice?
Donations generate no invoice and no commercial consideration. For commercial licensing, contact commercial@proso.com.br.

Prefer not to donate right now? No problem — keeping on reading is support enough. 💜

Features Pricing Support Privacy Terms Commercial Licensing

© 2026 Proso. All rights reserved.

Made with care in Recife, Brazil.