Updated Optional Hardening (markdown)

Optional-Hardening.md

@@ -84,12 +84,23 @@ user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
 
 ***
 
+### Disk Cache
+Keep in mind that disabling the disk cache is only available on Firefox. It is not an option in any other browser.
+
+Disable the disk cache if you believe it helps your privacy or performance.
+```javascript
+// PREF: disable disk cache
+user_pref("browser.cache.disk.enable", false);
+```
+
+***
+
 ### Downloads
 
-Enforce Firefox to inform you of any download attempts.
-
 #### Always ask where to save files
 
+Make Firefox ask you where to save every download.
+
 * `☰` *→ Settings → General → Files and Applications → Downloads → Always ask you where to save files*
 
 ```javascript
@@ -99,6 +110,8 @@ user_pref("browser.download.useDownloadDir", false);
 
 #### Ask to open or save new file types
 
+Firefox will ask you what to do with a download *only* if it is your first time encountering a file type.
+
 * `☰` *→ Settings → General → Files and Applications → Applications → What should Firefox do with other files?*
 
 ```javascript
@@ -106,15 +119,14 @@ user_pref("browser.download.useDownloadDir", false);
 user_pref("browser.download.always_ask_before_handling_new_types", true);
 ```
 
-***
+#### Display installation prompt for recommended extensions
 
-### Disk Cache
-Keep in mind that disabling the disk cache is only available on Firefox. It is not an option in any other browser.
+Firefox will show a prompt even for [recommended extensions](https://support.mozilla.org/en-US/kb/recommended-extensions-program).
 
-Disable the disk cache if you believe it helps your privacy or performance.
 ```javascript
-// PREF: disable disk cache
-user_pref("browser.cache.disk.enable", false);
+// PREF: show prompt for recommended or privileged extensions
+// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331
+user_pref("extensions.postDownloadThirdPartyPrompt", false);
 ```
 
 ***