Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

when using firefox on yahoo and opening my mail it says Not Found The requested URL /dc/launch was not found on this server. How can this be fixed?

  • 2 biyano
  • 3 eza na bankokoso oyo
  • 3 views
  • Eyano yasuka ya Hasan

more options

when using firefox on yahoo and opening my mail it says Not Found The requested URL /dc/launch was not found on this server. How can this be fixed?

when using firefox on yahoo and opening my mail it says Not Found The requested URL /dc/launch was not found on this server. How can this be fixed?

All Replies (2)

more options

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

more options

Firefox cannot load websites but other programs can

Check and tell if its working.