Hmm...it may not be that simple
(Starting to understand why not everyone likes Linux)
Post#1 describes how to replace an existing version of the file libflashplayer.so
by an older version. Version 10 of Adobe Flasplayer will work with older CPU's. However the latest version 10 is not the one mentioned in the article.
Actually the most latest version 10 to download from Adobe website.
you can download the file 10.3.183.90_archive.zip
This archive contains a lot of maps and folders for different operating systems.
While making your way through the unzipping process, you can remove all the non-linux related items. Keeping only the unzipped Linux stuff makes your work easier to reach the file which you need.
This file (libflashplayer.so) is the one we use as source to replace the file which does not work for your older system.
Regarding STEP 3, the existing locations found on my system were the following
Computer/usr/lib/flashplugin-installer/libflashplayer.so (17,422,820 bytes)
FIREFOX actually uses the same file, in the samefolder. Please note that the file is accessed via LINKS, appearing at other locations made by Mozilla.
The existing file must be replaced by the older file with same name, which was unpacked.
To do this, finally copy the extracted file libflashplayer.so
to the DESTINATION folder /usr/lib/flashplugin-installer
My SOURCE FILE was :
This Terminal (copy) command overwrites
the not-working existing file with the old working version. The COPY command keeps the source file
for expected later use (instead of using the move command)
cp -f ~/Downloads/fp_10.3.183.90_archive/10_3_r183_90/flashplayer_10_3r183_90_linux/libflashplayer.so /usr/lib/flashplugin-installer
This worked for my old PC with Celeron CPU. However Chromium was removed before executing the procedure, with Firefox only installed. I guess I should install again Chromium, to verify if some links are working now in this browser as well as in Firefox