Streaming audio (Radio) interruption

(NeedInfo from)



2 years ago
2 years ago


(Reporter: Paul, Unassigned, NeedInfo)


48 Branch

Firefox Tracking Flags

(Not tracked)




2 years ago
User Agent: Mozilla/5.0 (Windows NT 5.1; rv:48.0) Gecko/20100101 Firefox/48.0
Build ID: 20160823121617

Steps to reproduce:

Restarted Firefox, and updates were installed for ver 48.0.2

Actual results:

While listening to streaming audio (, after a brief time of listening the audio starts sounding "choppy".
If allowed to continue, the tab reports an error of "Unable to detect a suitable data stream, and audio quits.
Closing the window and reopening using "Restore closed windows" clears the errors.

Expected results:

Prior to the upgrade on August 24th, streaming audio only developed stuttering if left on for hours, or the Firefox.exe process memory usage exceeded 1,000K... requiring a Firefox restart to clear the memory allocation.

Comment 1

2 years ago
I spent a little time on with Firefox 48.0.2 on both Linux and Windows (specifically, Windows 10, though).  I let it run 15-20 minutes in each, and I did not notice any pronounced choppiness during that time.  Unfortunately, I don't have a Windows XP instance to test on.

Can you say roughly how long it takes for this problem to manifest itself?  Will work when you run in safemode (  Do you still see the problem then?


2 years ago
Flags: needinfo?(paulwc)

Comment 2

2 years ago
Firefox on XP uses a slightly different mechanism to play sound than other Windows versions.  If the problem was there, my test on Windows 10 was no help.

I scrounged up a virtual machine running Windows XP, essentially a fresh XP installation.  I installed Firefox 43, upgraded to 47, and then finally figured out how to get 48.0.2 installed.  (The regular Firefox update mechanism didn't want to take me to 48.0.2.)

I made it through 15-20 minutes of listening to on all three of those versions.  At version 47, I did hear some brief stuttering when Windows Update decided to check for updates.  On 48.0.2, I could manufacture stuttering by browsing dense content on an infinite scroll website.  The choppiness coincided with loading new content. Even then, though, the stutter was temporary.  At the end of 20 min., the music was still playing steadily.

Finally, I simply "unplugged" the network connection to the virtual machine.  The station played for a few more moments and stopped.  A few seconds after that, the web page presented this error inside a dialog: "We didn't find any playable streams."  Is that the error you saw?

In any case, I haven't yet reproduced the original problem described above.  Is there any chance this is due to some form of network congestion or even network hiccups directly on the machine?


Comment 3

2 years ago
The problem appears to be unique to In my case, a local station: KUFO-970, Portland, Oregon.

With my install, once the stuttering starts, it increases in intensity until it shuts down audio with the error dialog you noted... requiring window closure, and selecting "Recently Closed Windows" to renew the closed window with clear audio.

The stuttering is not replicated with:

I do have what would be considered a "Power User" XP SP3 install, with many TSR's (old school... Terminate and Stay Resident).

I'm resisting upgrading Windows Ver... the last time I migrated my system, corrupt folder copies lost a ton of personal files!So, I'm trying to manage with my unsupported XP. I just lost use of Dropbox on the 29th... until I upgrade! :(

Comment 4

2 years ago
Added info...

I typically run Firefox with two windows... each window with 16-20 tabs.

I have 32 bit XP, so only 4GB of the physical 8GB is available installed on this new CPU.

Upgrading to 64 bit has been resisted for the same migration concern... along with many old software titles I use that are not 64 bit compliant.

I used to use Virtual Windows on my Macs, but initial versions would always have compatibility issues... Not ready for Prime Time!

At least I've moved up from my old CP/M and MS-DOS 1.25... both on 8" Floppy Disks! (NEC 8801) :o)

Comment 5

2 years ago
I tested with XP SP3, so that is good.  It seems unlikely this is due to undetected malware based on your description.  Two windows, 16-20 tabs each ... I didn't press it that far on my test.

At this point I'm not sure what to recommend that you probably have not tried:

1.  Do you still see the problem if is the only tab open?  Maybe open that single tab before you step away for awhile and verify it is still running when you come back.  And how long did it run?

2.  If the problem does not happen with #1, can you identify a minimum number of other tabs that reproduce the problem?  What is the content of those tabs?  And how long until it manifests?

3.  Can you try the usual safemode [1] and clean profile [2] just to rule out a problem there?

4.  Could you experiment with the nightly build to see if the problem got any worse or better?  [3]

5.  Worst case you can try rolling back, but that is not recommended.  [4]  It might be useful, though, to confirm this is something specifically associated with the upgrade to 48.0.2.

If one of the developer types weighs in with a specific recommendation, try that first.

And, for the record, I remember the acronym "TSR" from my youth, pre-Windows days.  But 8" floppies?  Before my time!  ;)


Comment 6

2 years ago
Been up since 2:30 PST... I'll do the troubleshooting after I resurface! ;)

I learned to program using punch cards and paper tape! Those old keyboards had a FIG/LTR key to switch between Alpha and Numeric key functions... a real pain when programming in the old mainframe languages that had mandatory line numbering!

It was always a thrill when somebody knocked your 3" stack of punch cards out of your hand, while waiting to turn in your lab assignment to the SysOp at the last minute! :o

Paper tape was used on a CNC Tape Mill... invariably, the tape would break with the tool down! Another pucker moment! ;)

8" floppies were a blessing in comparison! As was a 300 baud modem, so assignments could be done from home, rather than waiting in line for a free terminal at the Computer Center!

I actually had both 8" and 5 1/4" drives on my NEC. I earned some extra pocket change copying data files from old computer formats to newer computer systems. About the only disks I couldn't work with were systems that used hard sector disks, or variable speed disks. NorthStar and Victor computer systems were the main ones I remember having trouble with.

Of course, the new-fangled digital computers were easier to work with than the old Analog Computers I was taught on at Avionics school for the pre-release of the C5A Galaxy Navigation Computer. Those send/receive servos needed constant adjusting to compensate for variables in the bird's electronics... and weather!
Avionics - The C-5 Galaxy has sophisticated communications equipment and a triple inertial navigation system (INS), making it nearly self-sufficient. It can operate without using ground-based navigational aids.
User Agent: Mozilla/5.0 (Windows NT 5.1; rv:48.0) Gecko/20100101 Firefox/48.0

I have tested this issue on Windows XP x32 and Windows 10 x64 with the latest Firefox release (48.0.2) and the latest Nightly (51.0a1-20160904030201) and could not reproduce it.
After opening and listening to different streaming audio radios (e.g. for a couple of hours, I haven't encountered any errors or "choppy" sounding.

Have you tried the steps mentioned by Ron in comment 5?
Marking this as Resolved - Incomplete due to the lack of response from the reporter.

If anyone can still reproduce it on latest versions, feel free to reopen the issue and provide more information.
Last Resolved: 2 years ago
Resolution: --- → INCOMPLETE
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