While it is possible to downgrade chromium to a version that will run on
a Pentium M processor, it's highly discouraged to run such an old
version that has known security problems.
It's unfortunate that upstream has decided to drop support for these
processors, and unfortunately it's not
You can install all those three packages at once by specifying the
required version:
sudo apt-get install chromium-browser=65.0.3325.181-0ubuntu1
chromium-codecs-ffmpeg=65.0.3325.181-0ubuntu1
chromium-codecs-ffmpeg-extra=65.0.3325.181-0ubuntu1
Then you can freeze these versions:
sudo apt-mark
This situation also affects me.
When I updated the chromium-browser, it stopped to function.
I tried to install an older version (65.0.3325.181-0ubuntu1), but there are
conflicts with needed packages (chromium-codecs-ffmpeg-extra
chromium-codecs-ffmpeg) once it doesn't try to install the older
Thanks for the pointers Zulus Surri. I think your analysis is correct,
although I don't have an old enough CPU handy to confirm it.
I'm afraid reverting that one change won't cut it, as it's likely that
there are now multiple changesets in chromium that take advantage of
this recent SSE3
