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!

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.

Sykje yn Support

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.

error 18

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  • 1 hat dit probleem
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  • Lêste antwurd fan cor-el

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In BT Yahoo error 18 appears when trying to apply attachments to e-mails, how do I resolve this issue?

In BT Yahoo error 18 appears when trying to apply attachments to e-mails, how do I resolve this issue?

Alle antwurden (3)

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hi, please try to clear the cache & cookies from yahoo.com and reload the page.

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Hi Philipp, I've cleared the cache & cookies but I still can't attach anything to an e-mail.

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You can check if your plugins are up-to-date.

Your System Detail list shows an older Shockwave Flash 11.8 r800 version. You can find the latest Flash player versions for Firefox on this page:


It is possible that security (Anti-Virus, firewall) is causing problems. Try to disable security software temporarily to see if that makes a difference.