[26874] Raise required FF version to 60 (latest ESR) (#6312)

[26874] Raise required FF version to 60 (latest ESR)

[ci skip]

browserslist

@@ -4,4 +4,4 @@
 last 2 Chrome versions
 last 2 Safari versions
 last 2 Edge versions
-Firefox >= 45
+Firefox >= 60

docs/installation/system-requirements.md

@@ -43,7 +43,7 @@ OpenProject supports the latest versions of the major browsers. In our
 strive to make OpenProject easy and fun to use we had to drop support
 for some older browsers (e.g. IE 11).
 
-* [Mozilla Firefox](https://www.mozilla.org/en-US/firefox/products/)
+* [Mozilla Firefox](https://www.mozilla.org/en-US/firefox/products/) (At least ESR version 60)
 * [Microsoft Edge](https://www.microsoft.com/de-de/windows/microsoft-edge)
 * [Google Chrome](https://www.google.com/chrome/browser/desktop/)
 

frontend/app/globals/unsupported-browsers.ts

@@ -33,13 +33,13 @@ declare const I18n:op.I18n;
   $(function () {
     // Specifies minimum versions to be supported
     // As we don't support ANY version of msie, so treat 11 (last ie before edge) as unsupported
-    const unsupported = {
+    const minimumSupported = {
       msie: '12',
-      firefox: '52'
+      firefox: '60'
     };
     let additionalMessage = I18n.t("js.unsupported_browser.update_message");
 
-    if (bowser.isUnsupportedBrowser(unsupported, window.navigator.userAgent)) {
+    if (bowser.isUnsupportedBrowser(minimumSupported, window.navigator.userAgent)) {
       if (bowser.msie) {
         additionalMessage = I18n.t("js.unsupported_browser.update_ie_user");
       }