UbuntuPlay online video display “Not found supported video format andMIMEType of solution

0. Background

The software environment is as follows:

  • System:Ubuntu 18.04.1 LTS
  • Browser:Firefox Quantum 61.0.1 (64-bit)

When viewing online videos using Firefox, some sites prompt that no supported video formats and MIME types have been found.

1. Solutions

1.1 the reason

This situation should be caused by the failure to install the video decoder and FlashPlayer plug-in. This can be solved in the following steps.

1.2 Installing the Decoder

Sudo apt install Ubuntu-restricted-extras

1.3 installationFirefox 的 flashplayerThe plug-in

  • Plug-in download

Get.adobe.com/flashplayer… Go to the above url and select.tar.gz for Linux and click Download Now

  • Decompressing a Compressed Package

tar -xvzf flash_player_npapi_linux.x86_64.tar.gz

  • Go to the directory of the compressed package and copy itlibflashplayer.soThe file is stored in the plug-in directory of the browser

sudo cp libflashplayer.so /usr/lib/firefox/browser/plugins

  • Copy the compressed packageusrEverything in that folder/usrdirectory

sudo cp -r usr/* /usr

  • restartFirefoxThe browser

2. References

  • flashplayerIt’s in the compression packagereadme.txt