linux flash player

I am running KUbuntu version 15. I have the latest version of Firefox and Chromium installed. For Firefox I went through the steps to install Flash player, but or Chromium flash must be embedded. The problem is with Firefox, and I'm pretty sure flash player is the source of the problem. What happens is, when I open a new tab, the volume shoot up all the way, and I have to click on the speaker icon in the lower right corner of the screen and turn down the volume. This even happens is I'm watching a video, and click on the streaming bar to jump forward in the video.
For Chromium this doesn't happen. I can open as many tabs as I want, or jump forward or back in a video, and the volume is unchanged. If I decide to change the volume, it stays at the level I set.
This is why I'm pretty certain the problem is with flash player, because if it was with the software running my sound card, it should happen with both firefox and chromium.
So my question is, is there a way to use a different version of flash player in firefox? Or is there an alternate version of flash player?
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The problem is that flashplayer is no longer officially supported for Linux by Adobe. They will still publish security fixes for the last version of flash, but it is still an old version. On Windows I think it is currently version 19 or something like that, while for Linux (and also Android for that matter) you are stuck with version 11.2.

Chromium on the other hand uses pepperflash which as far as I know is a re-engineered version of the latest adobe flash version done by google. But this isn't, as far as I know, OpenSource, so it can be an issue with many distributions. There is though a way to use Pepperflash within firefox too. for that you need to install the Freshplayer Plugin, which is a kind of a wrapper for pepperflash to work with firefox.

Try installing the freshplayerlugin via your package manager (I^m not sure though whether it is included in the default repositories).

If it isn't included in the default repos of Kubuntu, check the following link to include it:

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JeffBeallAuthor Commented:
sorry I didn't get back to this sooner. Thank you so much for your help, you really know Linux.
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