diff --git a/firefox-ios/Client/Frontend/Settings/ContentBlockerSettingViewController.swift b/firefox-ios/Client/Frontend/Settings/ContentBlockerSettingViewController.swift
index e2d4cb8f6c1c..ab0c61aadc69 100644
--- a/firefox-ios/Client/Frontend/Settings/ContentBlockerSettingViewController.swift
+++ b/firefox-ios/Client/Frontend/Settings/ContentBlockerSettingViewController.swift
@@ -149,7 +149,7 @@ class ContentBlockerSettingViewController: SettingsTableViewController {
             let title: String = .TrackerProtectionLearnMore
 
             let theme = themeManager.currentTheme(for: windowUUID)
-            let font = DefaultDynamicFontHelper.preferredFont(withTextStyle: .subheadline, size: 12.0)
+            let font = FXFontStyles.Regular.caption1.scaledFont()
             var attributes = [NSAttributedString.Key: AnyObject]()
             attributes[NSAttributedString.Key.foregroundColor] = theme.colors.actionPrimary
             attributes[NSAttributedString.Key.font] = font
diff --git a/firefox-ios/Client/Frontend/Settings/SettingsTableViewController.swift b/firefox-ios/Client/Frontend/Settings/SettingsTableViewController.swift
index 48b34a5ec722..df1f823c45ce 100644
--- a/firefox-ios/Client/Frontend/Settings/SettingsTableViewController.swift
+++ b/firefox-ios/Client/Frontend/Settings/SettingsTableViewController.swift
@@ -507,7 +507,6 @@ class StringSetting: Setting, UITextFieldDelegate {
     private struct UX {
         static let padding: CGFloat = 15
         static let textFieldHeight: CGFloat = 44
-        static let fontSize: CGFloat = 17
         static let textFieldIdentifierSuffix = "TextField"
     }
 
@@ -575,11 +574,7 @@ class StringSetting: Setting, UITextFieldDelegate {
         cell.accessibilityTraits = UIAccessibilityTraits.none
         cell.contentView.addSubview(textField)
 
-        textField.font = DefaultDynamicFontHelper.preferredFont(
-            withTextStyle: .body,
-            size: UX.fontSize,
-            weight: .regular
-        )
+        textField.font = FXFontStyles.Regular.body.scaledFont()
 
         NSLayoutConstraint.activate(
             [
diff --git a/firefox-ios/Client/Frontend/Settings/ThemeSettings/ThemeSettingsController.swift b/firefox-ios/Client/Frontend/Settings/ThemeSettings/ThemeSettingsController.swift
index 0c2f61c07a7e..c76859b2b4c5 100644
--- a/firefox-ios/Client/Frontend/Settings/ThemeSettings/ThemeSettingsController.swift
+++ b/firefox-ios/Client/Frontend/Settings/ThemeSettings/ThemeSettingsController.swift
@@ -13,7 +13,6 @@ class ThemeSettingsController: ThemedTableViewController, StoreSubscriber {
     struct UX {
         static var rowHeight: CGFloat = 70
         static var moonSunIconSize: CGFloat = 18
-        static var footerFontSize: CGFloat = 12
         static var sliderLeftRightInset: CGFloat = 16
         static var spaceBetweenTableSections: CGFloat = 20
     }
@@ -202,8 +201,7 @@ class ThemeSettingsController: ThemedTableViewController, StoreSubscriber {
         let label: UILabel = .build { label in
             label.text = .DisplayThemeSectionFooter
             label.numberOfLines = 0
-            label.font = DefaultDynamicFontHelper.preferredFont(withTextStyle: .footnote,
-                                                                size: UX.footerFontSize)
+            label.font = FXFontStyles.Regular.caption1.scaledFont()
             label.textColor = self.themeManager.currentTheme(for: self.windowUUID).colors.textSecondary
         }
         footer.addSubview(label)