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!

Αυτός ο ιστότοπος θα έχει περιορισμένη λειτουργικότητα, όσο εκτελούμε εργασίες συντήρησης για να βελτιώσουμε την εμπειρία σας. Αν ένα άρθρο δεν επιλύει το ζήτημά σας και θέλετε να κάνετε μια ερώτηση, η κοινότητα υποστήριξής μας είναι έτοιμη να σας βοηθήσει στο Twitter (@FirefoxSupport) και στο Reddit (/r/firefox).

Αναζήτηση στην υποστήριξη

Προσοχή στις απάτες! Δεν θα σας ζητήσουμε ποτέ να καλέσετε ή να στείλετε μήνυμα σε κάποιον αριθμό τηλεφώνου ή να μοιραστείτε προσωπικά δεδομένα. Αναφέρετε τυχόν ύποπτη δραστηριότητα μέσω της επιλογής «Αναφορά κατάχρησης».

Μάθετε περισσότερα

Why are MP4 video playback problems solved when the MP4 is converted to M4V?

  • 1 απάντηση
  • 2 έχουν αυτό το πρόβλημα
  • 1 προβολή
  • Τελευταία απάντηση από guigs

more options

Something weird is happening with my website's MP4 videos in Firefox (39.0.3), using the videojs html5 player. For example, in a 4-minute video: sometimes there is no audio; sometimes the audio starts but cuts out after 30 seconds; sometimes the last 30 seconds of audio starts playing after the first 30 seconds. This behaviour is only seen (or heard) in files accessed off the server - accessed off the C-drive, they play fine.

The MP4-with-audio-problems was created from a .MOV file using Handbrake 0.10. I noticed that other MP4s I did last year (with Handbrake 0.09) do not have audio problems in Firefox. So it may be a Handbrake issue?

Anyway, workaround! I converted the same .MOV to .M4V (using Handbrake) and the audio problems have disappeared. It's odd, because M4V is supposedly the exact same file as the MP4 - only the extension is different. But it works.

Something weird is happening with my website's MP4 videos in Firefox (39.0.3), using the videojs html5 player. For example, in a 4-minute video: sometimes there is no audio; sometimes the audio starts but cuts out after 30 seconds; sometimes the last 30 seconds of audio starts playing after the first 30 seconds. This behaviour is only seen (or heard) in files accessed off the server - accessed off the C-drive, they play fine. The MP4-with-audio-problems was created from a .MOV file using Handbrake 0.10. I noticed that other MP4s I did last year (with Handbrake 0.09) do not have audio problems in Firefox. So it may be a Handbrake issue? Anyway, workaround! I converted the same .MOV to .M4V (using Handbrake) and the audio problems have disappeared. It's odd, because M4V is supposedly the exact same file as the MP4 - only the extension is different. But it works.

Όλες οι απαντήσεις (1)

more options

This might have to do with it: