Gentoo Packages

mail-client/thunderbird: Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled.
www-client/firefox: Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled
www-client/icecat: Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled.
www-client/librewolf: Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled
www-client/torbrowser: Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled

mail-client/thunderbird: Use the system-wide media-libs/libwebp instead of bundled.
www-client/firefox: Use the system-wide media-libs/libwebp instead of bundled
www-client/torbrowser: Use the system-wide media-libs/libwebp instead of bundled

Warning: USE flag 'system-webp' is used in ebuilds/metadata but is not defined in profiles/use.desc

Package	Local Description (use.local.desc)	Metadata Description (metadata.xml)
www-client/torbrowser	Use the system-wide media-libs/libwebp instead of bundled	Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled
www-client/firefox	Use the system-wide media-libs/libwebp instead of bundled	Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled
mail-client/thunderbird	Use the system-wide media-libs/libwebp instead of bundled.	Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled.
www-client/librewolf	-	Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled
www-client/icecat	-	Use the system-wide <pkg>media-libs/libwebp</pkg> instead of bundled.

USE Flag: system-webp