Yes. According to their official website for Canada (emphasis mine):
Fries and Hash Browns
Our World Famous Fries™ and hash browns are go-tos for our vegetarian
and vegan guests. Since 2007, we’ve made them without any
animal-sourced ingredients. We cook them in 100% vegetable oil, in a
dedicated fryer separate from our meat items.
Additionally, from their nutrition calculator you can get a full list of the ingredients in their fries:
French Fries:
Potatoes, canola oil, hydrogenated soybean oil, safflower oil, natural
flavour (vegetable source), dextrose, sodium acid pyrophosphate
(maintain colour), citric acid (preservative), dimethylpolysiloxane
(anti-foaming agent), cooked in vegetable oil (canola oil, corn oil,
soybean oil, hydrogenated soybean oil, citric acid,
dimethylpolysiloxane)
Salt:
Salt, silicoaluminate, dextrose, potassium iodide