What version of WebKitGTK+ are you using (this can be found at <about:version>)? This seems to be a webkit bug in JSCore. Does setting the environment variable "JavaScriptCoreUseJIT" to 0 avoid the crash?
What version of WebKitGTK+ are you using (this can be found at <about:version>)? This seems to be a webkit bug in JSCore. Does setting the environment variable "JavaScriptCore UseJIT" to 0 avoid the crash?