about firefox crashing

Hi
\Since a few months firefox on amd64 crashes

francesco@vaio64:~$ firefox
> ExceptionHandler::GenerateDump cloned child
> ExceptionHandler::WaitForContinueSignal waiting for continue signal...
> 16588
> ExceptionHandler::SendContinueSignalToChild sent continue signal to child
> francesco@vaio64:~$ Failed to open curl lib from binary, use libcurl.so
> instead


I installer curl to no avail:
 francesco@vaio64:~$ firefox
ExceptionHandler::GenerateDump cloned child
ExceptionHandler::WaitForContinueSignal waiting for continue signal...
17588
ExceptionHandler::SendContinueSignalToChild sent continue signal to child
francesco@vaio64:~$

As firefox is still offered as a package for amd64, what may be my problem?

I am very unsatisfied with chromium for my purposes.

thanks for advice

francesco pietra