Pale Moon update fixes high CPU usage for HD video playback

Some people had reported choppy playback and/or a high CPU load when using the 27.4.0 release of the Pale Moon browser – for instance when playing HD videos on Youtube. See these topic posts on the LQ Slackware forum. A bugfix update of Pale Moon was released a few days ago and according to the releasenotes, the new Pale Moon 27.4.1 addresses these issues. I have uploaded fresh packages for palemoon-27.4.1 to my package repository so that you can check that this is true.

Remember to install ffmpeg if you are running Slackware 14.2. A ffmpeg package was added to slackware-current but you still might want to replace that package with my enhanced build of it. And if you are using Slackware’s KDE 4 you must replace Slackware’s oxygen-gtk2 package with my updated version of oxygen-gtk2 to prevent browser crashes.
This is what Youtube reports about the media capabilities of Pale Moon 27.4 on Slackware:


If your Pale Moon browser shows that “MSE & WebM VP9” is not supported, you need to go into the browser preferences menu and in the “Content” tab, un-check the “Use MSE asynchronously” so that you can check “Enable MSE for WebM video”:

NOTE: let me know and do not bother the Pale Moon developers with any issues you encounter while using my Slackware package instead of the official binaries.

One thought on “Pale Moon update fixes high CPU usage for HD video playback

  1. Pingback: Links 7/8/2017: PHP 7.2.0 Alpha, OpenSSL Disables TLS 1.0 and 1.1 | Techrights

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