716025 - YouTube+Flash - replay hangs while loading video from cache

Status: RESOLVED INVALID

(Firefox :: Untriaged, defect)

Description

[s-computer]

To reproduce:
1. Open a few YouTube videos, load them completely and watch them at least once.
2. Do something else for some time. ( Maybe doing nothing in Firefox is enough. Else just surf normally or watch/listen to other (music) videos.
3. Go back to a tab opened in step 1.
4. Click on Replay / again. (ger. "Nochmals")

Actual result:
The loading circles keep spinning. As soon as you jump to one point in the video with the mouse or press 0 while the player is focused (shortcut to jump to the beginning), the videos plays normally and the buffer is full. But, for a split second the video buffer (white line) wasn't there, signaling, it had been empty.

I'm not sure, whether this bad behavior is because of FF's memory management or the Flash Plugin (11.1.102.55), but there are definitely some heavy IO activities according to the Windows Ressource Monitor from:
C:\Users\Username\AppData\Local\Temp\flaXXXX.tmp (where X represents a hex number and the tmp-files are YouTube video files), other standard cache files and sometimes in addition from the Pagefile.

(Some big loads from the pagefile might have been the mistake of the OS, due to the installation of updates without restarting, although I was never prompted for it. I'm encountering the same problems now, but this time without the heavy loads from the pagefile.

On my machine, there are currently about 130 tabs open, but the last FF start was less than an hour ago. Maybe FF is assuming that 2 GiB (including 750 MiB for plugin-container.exe) is way too much RAM, although I have 4 GiB as physical RAM. Just in the case, if this was important for the memory management unit.)

Expected Result:
Normal replay.

Comment 1

[Stefan Weiss [:sir_none]]

Hello,

I just found your 2 years old bug report and want to ask you for a short update.
we know that there was many problems with flash until Version 14 (or 16^^) of Firefox.
so it would be nice if you can confirm that an update solve this problem for you?

thanks for your help to make firefox better.

Comment 2

[Stefan Weiss [:sir_none]]

Closed, because of missing feedback from Reporter.

please feel free to reopen this bug report if you think it was closed wrong or
you have new information to reproduce the problem.