diff --git a/README.md b/README.md
index 9f6b5a5..06884d9 100644
--- a/README.md
+++ b/README.md
@@ -278,12 +278,20 @@ Grouped in options:\
 [The Virginian-Pilot](https://www.pilotonline.com)
 
 #### Canada
-[Financial Post](https://www.financialpost.com) -
 [Le Devoir](https://www.ledevoir.com) -
-[National Post](https://www.nationalpost.com) -
 [The Globe and Mail](https://www.theglobeandmail.com) -
 [The Hill Times](https://www.hilltimes.com)\
-[The Toronto Star](https://www.thestar.com) and regional TorStar sites (grouped in options) like
+
+Grouped in options:\
+*Postmedia Network* sites like (opt-in to custom sites for unlisted)\
+[Calgary Herald](https://calgaryherald.com) -
+[Financial Post](https://www.financialpost.com) -
+[National Post](https://www.nationalpost.com) -
+[The Province](https://theprovince.com) -
+[Toronto Sun](https://torontosun.com) -
+[Vancouver Sun](https://vancouversun.com)\
+*TorStar* sites like\
+[The Toronto Star](https://www.thestar.com) and regional sites 
 [Niagara Falls Review](https://www.niagarafallsreview.ca) -
 [Peterborough Examiner](https://www.thepeterboroughexaminer.com) -
 [St. Catharines Standard](https://www.stcatharinesstandard.ca) -
diff --git a/background.js b/background.js
index 8e0bd18..01f2aa4 100644
--- a/background.js
+++ b/background.js
@@ -781,7 +781,20 @@ ext_api.webRequest.onBeforeSendHeaders.addListener(function(details) {
       enabledSites.push(sanoma_domain);
   }
 
-  } else if (header_referer_hostname.match(/\.(com|org)$/)) {
+  } else if (header_referer_hostname.match(/\.(ca|com|org)$/)) {
+
+  // block TinyPass for Postmedia Network sites
+  var ca_postmedia_domains = grouped_sites['###_ca_postmedia'];
+  var ca_postmedia_domain = (matchUrlDomain('postmedia.digital', details.url) && ['image'].includes(details.type) && !matchUrlDomain(ca_postmedia_domains.concat(['canada.com', 'canoe.com', 'driving.ca']), header_referer) && enabledSites.includes('###_ca_postmedia'));
+  if (ca_postmedia_domain) {
+    let pm_domain = urlHost(header_referer).replace(/^(www)\./, '');
+    if (!allow_cookies.includes(pm_domain))
+      allow_cookies.push(pm_domain);
+    blockedRegexes[pm_domain] = blockedRegexes['nationalpost.com'];
+    ca_postmedia_domains.push(pm_domain);
+    if (!enabledSites.includes(pm_domain))
+      enabledSites.push(pm_domain);
+  }
 
   // set googlebot-useragent for Gannett sites
   var usa_gannett_domains = grouped_sites['###_usa_gannett'];
diff --git a/changelog.txt b/changelog.txt
index 6555830..5f87f5e 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -2,6 +2,7 @@
 Changelog Bypass Paywalls Clean - Firefox
 
 Post-release
+Add Postmedia Network (Canada)
 Fix Westfalen-Blatt (gallery)
 Fix update check (GitLab CORS issue or BitBucket http error 429)
 Update custom sites (load text from json)
diff --git a/custom/sites_custom.json b/custom/sites_custom.json
index 1148399..6029491 100644
--- a/custom/sites_custom.json
+++ b/custom/sites_custom.json
@@ -33,11 +33,6 @@
   "Brainly.com": {
     "domain": "brainly.com"
   },
-  "Calgaryherald.com": {
-    "allow_cookies": 1,
-    "block_regex": "\\.tinypass\\.com\\/",
-    "domain": "calgaryherald.com"
-  },
   "Capital.bg": {
     "allow_cookies": 1,
     "domain": "capital.bg",
diff --git a/manifest.json b/manifest.json
index cadac4a..0240642 100644
--- a/manifest.json
+++ b/manifest.json
@@ -106,6 +106,7 @@
         "*://*.businessinsider.com/*",
         "*://*.businessoffashion.com/*",
         "*://*.cairnspost.com.au/*",
+        "*://*.calgaryherald.com/*",
         "*://*.canberratimes.com.au/*",
         "*://*.capitalgazette.com/*",
         "*://*.cen.acs.org/*",
@@ -518,6 +519,7 @@
         "*://*.thenewatlantis.com/*",
         "*://*.thepeterboroughexaminer.com/*",
         "*://*.thepointmag.com/*",
+        "*://*.theprovince.com/*",
         "*://*.therecord.com/*",
         "*://*.thesaturdaypaper.com.au/*",
         "*://*.thespec.com/*",
@@ -533,6 +535,7 @@
         "*://*.timesofindia.indiatimes.com/*",
         "*://*.tivi.fi/*",
         "*://*.tlz.de/*",
+        "*://*.torontosun.com/*",
         "*://*.towardsdatascience.com/*",
         "*://*.townnews.com/*",
         "*://*.townsvillebulletin.com.au/*",
@@ -550,6 +553,7 @@
         "*://*.usinenouvelle.com/*",
         "*://*.uusisuomi.fi/*",
         "*://*.valeursactuelles.com/*",
+        "*://*.vancouversun.com/*",
         "*://*.vanityfair.com/*",
         "*://*.variety.com/*",
         "*://*.varmatin.com/*",
@@ -613,6 +617,7 @@
         "*://*.natgeofe.com/*",
         "*://*.nyt.com/*",
         "*://*.pasedigital.cl/*",
+        "*://*.postmedia.digital/*",
         "*://*.prcdn.co/*",
         "*://*.repstatic.it/*",
         "*://*.rndtech.de/*",
@@ -620,5 +625,5 @@
         "*://*.wallkit.net/*",
         "*://*.wsj.net/*"
     ],
-    "version": "2.5.7.3"
+    "version": "2.5.7.4"
 }
diff --git a/sites.js b/sites.js
index d91b024..0c451af 100644
--- a/sites.js
+++ b/sites.js
@@ -427,11 +427,6 @@ var defaultSites = {
     block_regex: /cdn\.ampproject\.org\/v\d\/amp-(access|ad)-.+\.js/,
     useragent: "googlebot"
   },
-  "Financial Post": {
-    domain: "financialpost.com",
-    allow_cookies: 1,
-    block_regex: /\.tinypass\.com\//
-  },
   "Financial Times (not Chinese)": {
     domain: "ft.com",
     allow_cookies: 1,
@@ -1101,11 +1096,6 @@ var defaultSites = {
     block_regex: /\.blueconic\.net\//,
     random_ip: "eu"
   },
-  "National Post": {
-    domain: "nationalpost.com",
-    allow_cookies: 1,
-    block_regex: /\.tinypass\.com\//
-  },
   "National Review": {
     domain: "nationalreview.com",
     allow_cookies: 1,
@@ -1251,6 +1241,19 @@ var defaultSites = {
     domain: "politicaexterior.com",
     allow_cookies: 1
   },
+  "Postmedia Network": {
+    domain: "###_ca_postmedia",
+    group: [
+      "calgaryherald.com",
+      "financialpost.com",
+      "nationalpost.com",
+      "theprovince.com",
+      "torontosun.com",
+      "vancouversun.com"
+    ],
+    allow_cookies: 1,
+    block_regex: /\.tinypass\.com\//
+  },
   "Precision Oncology News": {
     domain: "precisiononcologynews.com",
     group_rule: "###_gr_usa_genomeweb_domains"