Cannot log into craigslist.com with Trisquel 7

Attempts to log into craigslisst.com result in an error 404, using both abrowser and lynx. Email to the authors of classified ads may not reach their intended recipient, when using icedove. The presence or absense of noscript has no effect. I can create accounts and log in using firefox on another GNU/Linux distro and on OSX, using Safari. I use no proxies.

Any ideas?

Thanks,

Dave