Om de ûnderfining foar jo te ferbetterjen is tydlik de funksjonaliteit dan dizze website troch ûnderhâldswurk beheind. Wannear in artikel jo probleem net oplost en jo in fraach stelle wolle, kin ús stipemienskip jo helpe yn @FirefoxSupport op Twitter en /r/firefox op Reddit.

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Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

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Certain videos do not load (Weather Channel for example). Displays "Error: No valid source could be found" Using Windows XP with latest Adobe Flash Player (24 NPAPI). Thanks.

Certain videos do not load (Weather Channel for example). Displays "Error: No valid source could be found" Using Windows XP with latest Adobe Flash Player (24 NPAPI). Thanks.

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An error like "No valid source could be found" is always about the HTML5 media player and not about the Shockwave Flash plugin.

Since you are on Windows XP you do not have native support for playing MP4 files with the HTML5 media player, hence this error message.

You can try if the solution listed here still works for you. http://www.msfn.org/board/topic/175591-enable-mp4-h264-aac-html5-video-in-firefox-on-windows-xp-without-flash/

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Thank you.