I use Ubuntu Dapper 6.06 LTS x86_64, kernel 2.6.15.26
Firefox update 1.5.dfsg+1.5.0.10-0ubuntu0.6.06.1 apparently broke many sites (e.g. amazon.com personal account maintenance; launchpad.net) due to above problem with PSM.
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.12) Gecko/20060216 Debian/1.7.12-1.1ubuntu2
allowed me to access this site.
I too am experiencing this.
I use Ubuntu Dapper 6.06 LTS x86_64, kernel 2.6.15.26
Firefox update 1.5.dfsg+ 1.5.0.10- 0ubuntu0. 6.06.1 apparently broke many sites (e.g. amazon.com personal account maintenance; launchpad.net) due to above problem with PSM.
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.12) Gecko/20060216 Debian/ 1.7.12- 1.1ubuntu2
allowed me to access this site.