Update README.md

Relevant for Gentoo builds, it needs USE=vaapi or Firefox won't try using vaapi.
elFarto · Jun 5, 2023 · e2b23a1 · e2b23a1
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Showing 1 changed file with 1 addition and 1 deletion.
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@@ -103,7 +103,7 @@ Environment variables used to control the behavior of this library.
 
 ## Firefox
 
-To use the driver with firefox you will need at least Firefox 96, the following config options need to be set in the `about:config` page:
+To use the driver with firefox you will need at least Firefox 96, `ffmpeg` compiled with vaapi support (search ffmpeg output for --enable-vaapi), and the following config options need to be set in the `about:config` page:
 
 | Option | Value | Reason |
 |---|---|---|