SillyDog701

[PaulD]

Last night we installed on two computers the latest Flash Player, 11.3.300.257.
This was both the ActiveX version for Internet Explorer (we have IE 8),
and the 'other plugin-based browsers' version for (for us) Firefox (FF4).

Today, on Firefox, we found that:
- YouTube videos wouldn't play - there was just a black rectangle where the video should appear; and
- the Videos available from BBC News (via the 'Latest Headlines' bookmark in the Bookmarks Toolbar) didn't load. The text appeared, but the space where the video frame should appear - the space was null.

On IE there was neither of these problems.

Without going into the several steps of diagnoses, here are the conclusions:
1. IE and Flash 11.3.300.257 'ActiveX' appear to be OK
2. Firefox and Flash 11.3 'for plugins' don't work together. (I can't say they NEVER will work, but they didn't for us.)
3. We rolled back Flash (for plugins) to 11.2.202.235, which we had kept archived. Video functionality was restored.
4. A Google search disclosed other reports also of Firefox (various levels, including up to 13) having the same video problem. There were scattered exhortations to switch to Chrome, which apparently does not have these problems.
5. Final conclusion: 11.3 works for IE, but not for Firefox. 11.2 is necessary (for now) for Firefox.

Reference also the previous Flash article, flash-player-11-2-fixes-vulnerabilities-automatic-update-t17791.php .

UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

[Fulvio]

I updated Seamonkey to v.2.10.1, and You Tube seems to work. I have not been using Firefox all that much, but I will be checking it out.
I did, and had no problems. However, there is a v.13.0.1 which address, in part, problems founds by some people.

UserAgent: Mozilla/5.0 (Windows NT 5.1; rv:13.0) Gecko/20120615 Firefox/13.0.1 SeaMonkey/2.10.1

[Edward]

I have that version of Flash installed under Windows Vista. With SeaMonkey 2.10.1, YouTube videos are appearing and playing correctly.

UserAgent: Mozilla/5.0 (Windows NT 6.0; rv:13.0) Gecko/20120615 Firefox/13.0.1 SeaMonkey/2.10.1

[PaulD]

There are many Mozillazine posts on this problem in several threads, some inaccurate and uninformed.

Adobe concedes there is a problem and supplies a link to their Archive Downloads page. Scroll down about half way.

My previous conclusion is reinforced:
- IE is OK on 11.3.
- Other browsers seem to be OK on 11.3.
- If one is having any Flash-related problem in Firefox, drop back to 11.2.
- Differing Flash levels on different browsers (IE, FF) is no problem, as separate folders/files are used.

UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

[PaulD]

Adobe now has available Flash 11.3.300.262 for plugin-based browsers. Scroll down.
For Internet Explorer, the ActiveX version has not changed from 11.3.300.257.

I have installed and tested .262 on both Windows 7 and on XP Pro - on Firefox 13.0.1.
The problems originally reported now are fixed.
(But .262 doesn't fix the problems when on Firefox 4.0.1. I haven't tested anything between 4.0.1 and 13.0.1.)

If one is on a back-level of Firefox, then a previous level of Flash will work. I knows that 11.2.202.235 works on FF 4, and probably on later FF versions also.

Test your current level here.

UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0.1