Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Flash plugin won't work right with 31.0, works fine with 30.0, is there a fix coming?

  • 3 replies
  • 2 have this problem
  • 2 views
  • Last reply by James

acress
acress
more options

I have several Unitrends backup systems, which use flash for the Web GUI. After upgrading to Firefox 31.0, only one of four of these will load the GUI. This all works with IE, Chrome, and Firefox 30.0. My guess is that there is some legacy flash logic that does not work properly in 31.0. Currently, I have had to downgrade to Firefox 30.0 (no change to flash version, BTW).

I have several Unitrends backup systems, which use flash for the Web GUI. After upgrading to Firefox 31.0, only one of four of these will load the GUI. This all works with IE, Chrome, and Firefox 30.0. My guess is that there is some legacy flash logic that does not work properly in 31.0. Currently, I have had to downgrade to Firefox 30.0 (no change to flash version, BTW).

All Replies (3)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check for problems with current Shockwave Flash plugin versions and try this:

See also:

acress
acress Question owner
more options

This problem isn't about the flash plugin, everything else was the same, the flash plugin, the web GUIs using it, etc. The only difference that caused the problem was the upgrade to Firefox 31.0, and the only way I was able to resolve it was by downgrading to Firefox 30.0.

Furthermore, every other browser (IE, Chrome, etc.) works fine on this system using the same flash plugin, same web GUIs. The problem is specific to Firefox 31.0, so the problem needs to be resolved in Firefox.

James
James
  • Top 25 Contributor
  • Moderator
more options

IE uses a ActiveX version while Chrome comes with its own Pepper Plugin API Flash plugin and uses that by default instead of the one used by Firefox from Adobe. Even though they often times have same version numbers or close as you can see in http://www.adobe.com/software/flash/about/

Modified by James