PNGquant :: Add-ons for Thunderbird

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About this Add-on

Compresses PNG attachments and inline images using libimagequant (WASM) and asks for confirmation before sending.

Version Information

Version 1.2.0 Released Aug. 12, 2026 209.3 KiB Works with Thunderbird 115.0 and later

Source code released under GNU General Public License, version 3.0

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