The Gers will take on Kilmarnock at home in the fifth round of the Scottish Cup this afternoon.
The game at Ibrox will see Lee McCulloch return to Rangers for the first time since leaving the Glasgow giants in the summer of 2015.
McCulloch, who is now the interim manager of Kilmarnock, played for the Gers from 2007 to 2015.
The Scottish Cup fifth-round tie will also see defender Steven Smith and striker Kris Boyd face their former club Rangers.
Johnstone, who played for Rangers in the 1970s and 1980s and is a club legend, believes that the Kilmarnock trio should get a warm reception from the fans at Ibrox this afternoon.
“Lee McCulloch will return to Ibrox this weekend and look to cause an upset by leading his Kilmarnock side into the Scottish Cup quarter-finals,” the former Scotland international wrote in The Glasgow Evening Times.
“Stevie Smith and Kris Boyd could well line up against Rangers as well and it will be interesting to see how they are welcomed by the Gers fans.
“It didn’t end well for any of them last season and we have been over that before. But Lee, Stevie and Kris did well for Rangers at different times in their careers.
“I am not one for the fans booing former players when they come back to Ibrox. I think if you have done a turn for a club, as they did at one stage or another, then you deserve to be remembered for that. Hopefully they get a decent reception.”
Rangers are flying high in the Scottish Championship at the moment and look set to gain automatic promotion to the Scottish Premiership at the end of the season.
Playing at home will give Mark Warburton’s side an advantage this afternoon, and it should not come as a surprise to anyone if the Gers win against Kilmarnock, who are currently second from bottom in the Scottish Premiership table with 24 points from 25 matches.