Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Lees voor meer informatie dit artikel.

Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

Zoeken in Support

Vermijd ondersteuningsscams. We zullen u nooit vragen een telefoonnummer te bellen, er een sms naar te sturen of persoonlijke gegevens te delen. Meld verdachte activiteit met de optie ‘Misbruik melden’.

Meer info

Deze conversatie is gearchiveerd. Stel een nieuwe vraag als u hulp nodig hebt.

Firefox appears to be effecting Yahoo email accounts, causing them to close for "Suspicious Activity"

  • 2 antwoorden
  • 2 hebben dit probleem
  • 16 weergaven
  • Laatste antwoord van cor-el

HMR915
HMR915
meer opties

The same problem is happening again and again:

I sent TWO EMAILS -- THAT's TWO, not 200! Then what I sent did not go through but came back to me with the following messages:

Sorry, we were unable to deliver your message to the following address. Error code 475: Suspicious activity was detected on your account

This is 2 email in several days, and my account freezes, and I have to change the password again! However, IE does not seem to have this problem, only Firefox.

Why is my account doing this?

The same problem is happening again and again: I sent TWO EMAILS -- THAT's TWO, not 200! Then what I sent did not go through but came back to me with the following messages: Sorry, we were unable to deliver your message to the following address. Error code 475: Suspicious activity was detected on your account This is 2 email in several days, and my account freezes, and I have to change the password again! However, IE does not seem to have this problem, only Firefox. Why is my account doing this?

Alle antwoorden (2)

John99
John99
meer opties

Contact your email provider as they are sending the messages and detecting the suspicious activity.

Possibly you have malware activity that is affecting Firefox

cor-el
cor-el
  • Moderator
meer opties

You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • Hold down the Shift key and left-click the Reload button
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Command + Shift + R" (Mac)

Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window