I'm not sure how restrictive Iran is but it seems more liberal than Saudi because at least it is legal to be a Christian or a Jew, and probably most government officials are not interested in checking everybody's browser history repeatedly, but to be sure I'd clear the browsing history
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you