I can reproduce a crash of tor-browser-gnu-linux-x86_64-2.4.18-rc-1-dev-en-US (10/10 times) simply by opening webtropia.com or also https://www.webtropia.com (I'm sorry for the "advertisement" here but I figured it might be useful for you to reproduce it) steps to reproduce 1) start tor-browser-gnu-linux-x86_64-2.4.18-rc-1-dev-en-US 2) type "webtropia.com" into the urlbar and hit enter 3) wait for ~60 seconds -> crash I can't rule out active attack attempts so it might be a whise thing to use some throw-away VM for testing. Can anyone confirm this is happening also on your system? I can _not_ reproduce this crash with tor-browser-gnu-linux-x86_64-2.4.17-rc-1-dev-en-US ps: sorry for breaking the thread but I subscribed just this moment