typo

Dockerfile

@@ -3,7 +3,7 @@ FROM ubuntu:18.04
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && \
     apt-get install -y --allow-unauthenticated vim openssh-server mc \
-       less mercurial fiurefox chromium-browser git wget curl boxes sudo netcat \
+       less mercurial firefox chromium-browser git wget curl boxes sudo netcat \
         net-tools terminator default-jdk figlet python3-dev && apt-get clean && \
     curl https://bootstrap.pypa.io/get-pip.py | python3
 RUN hg clone https://bitbucket.org/MoonQ/tools /usr/local/share/q-tools