Installation du greffon Flash
Flash is a plug-in for your web browser that allows you to watch videos and use interactive web pages on some websites. While HTML5, which is a more modern solution, is increasingly offered, there are still some websites which won't work without Flash.
Si vous n'avez pas Flash installé, vous verrez certainement un message vous en informant lorsque vous visitez des sites web qui le requiert. Flash est disponible gratuitement (mais pas sous licence libre) au téléchargement pour la plupart des navigateurs.
There are two kinds of plug-ins available:
NPAPI for Firefox and other Gecko-based web browsers
PPAPI for Chromium and other Blink-based web browsers including Opera and Vivaldi
The Google Chrome browser is shipped with Flash bundled, and does not need a plug-in.
flashplugin-installer
The flashplugin-installer package provides the NPAPI plug-in for Firefox. If you chose to install certain third-party software when you installed Ubuntu, flashplugin-installer is probably installed already. Otherwise you can install it and restart your browser.
adobe-flashplugin
The adobe-flashplugin package provides both the NPAPI and PPAPI plug-ins, i.e. it provides Flash for both Firefox and Chromium like web browsers.
Assurez-vous que le dépôt Partenaires de Canonical est activé.
Installer le paquet adobe-flashplugin.
Restart your browser.
browser-plugin-freshplayer-pepperflash
Some features of the PPAPI plug-in, such as 3D acceleration and premium video DRM, are not available in the NPAPI plugin. If you use Firefox or some other Gecko-based browser and need those features, you can install the browser-plugin-freshplayer-pepperflash package. It's a wrapper which makes Firefox use the PPAPI plug-in.
Make sure that adobe-flashplugin is installed.
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Open a terminal window by pressing Ctrl+Alt+T and install the browser-plugin-freshplayer-pepperflash package:
sudo apt install browser-plugin-freshplayer-pepperflash
Restart your browser.