Firefox And Flash

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CentOS 7 Comments

No, flash is still supported by Adobe on linux. Only security updates, though. No new features. The last update was on 8 April.

I agree with that sentiment. Sometimes, however, there are circumstances in which you just can’t say no.

In case anyone else has this problem, the issue seems to be that firefox retains stale information about the plugin status. You can force a refresh as follows:

1. Exit firefox
2. Uninstall flash-plugin
3. Start firefox, and exit again
4. Install flash-plugin

7 thoughts on - Firefox And Flash

  • My flash install is showing 616 both in the binary and as reported from “about:plugins”.

    When I’ve had reason to look at this the past things were always in sync. My standard approach is to make certain that all instances of my FF version that uses flash are closed before I install from the adobe repo. I’ve never had to uninstall/reinstall the plugin.

    I agree with generally trying to avoid flash (and cookies and javascript) so have different FF versions and instances that I use based on what is needed and what I’m willing to allow a site to use.

  • Hello Andreas,

    On my 3 CentOS 6.5 systems here (all up-to-date), only one shows ‘577’
    whereas 616 is installed and the 577 binary has gone. Strange, I still didn’t get how to “fix” this, even if doesn’t sound overcritical to me.


  • Do as allready commited:

    close firefox uninstall fash start firefox close firefox install flash hopefully this works for you.

    config is inside $HOME/.mozzilla

    Am Dienstag, den 26.04.2016, 13:54 +0200 schrieb wwp:

  • Cause is the file “pluginreg.dat” in the Firefox profile folder. It stores the version info, but upon updates of the flashplayer, some times it will not get updated. Two ways to ‘cure’ that:

    a) Uninstall flash, (Re-)start Firefox,
    close Firefox, install new version, start Firefox.
    (Due to the ‘absence’ of flash, the ‘pluginreg.dat’ gets removed, and
    afterwards it will get recreated with the new info)

    b) Close firefox, remove ‘pluginreg.dat’, update flashplayer, start firefox

    – Yamaban

  • What always works for me, figured out after MUCH head-banging is:
    c) exit firefox, do yum install for the new package, restart firefox.
    no need to delete anything.

  • This is what I’ve done for years when issues arise. Before doing so however,

    cp -a pluginreg.dat pluginregdat.dat.YYMMDD

    Just in case something is scrogged.