# footnote marker not muted in footnote

I'm using a command in another TeX Q&A that is supposed to mute the footnote marker both in-text (no superscript) and in the footnote itself. However when I applied it in my document, it only muted in-text but still displays in footnote. How can I fix this? (I would like to have markers for the second footnote, but not the first - right now, the first footnote is muted in-text but not in the footnote - I'd like to get rid of the * in front of its footnote) Thanks!

\documentclass[12pt,oneside,a4paper]{article}
\usepackage{color}
\pagestyle{plain}
\usepackage[a4paper]{geometry}
\geometry{left=2.5cm,right=2.5cm,top=1.5in,bottom=1.5in}
\usepackage{lipsum}
\newcommand\blfootnote[1]{%
\begingroup
\renewcommand\thefootnote{}\footnote{#1}%
\addtocounter{footnote}{+1}%
\endgroup
}

\interfootnotelinepenalty=10000
\renewcommand{\baselinestretch}{1.5}

\makeatother
\begin{document}
\title{document title}
\author{Firstname \blfootnote{I woud like to thank...... } Lastname \footnote{contact details}}
\date{}
\maketitle

\end{document}

• To set a footnote without either footnote mark, you can (temporarily) define these two markers to be \relax: \let\@makefnmark\relax \let\@thefnmark\relax. You can add this to your definition of \blfootnote, and be sure to wrap \makeatletter ... \makeatother around that definition. This is a comment, not an answer, because I'm not able to test. However, the code was stolen from the definition of \@adminfootnotes in amsart, and has been used there successfully for years. – barbara beeton May 25 at 1:11