youtube: updated sponsorblock links

wiki/firefox.md

@@ -47,9 +47,8 @@ They can be removed and configured under `about:config`.
   frontends.
 - [Sidebery](https://addons.mozilla.org/en-GB/Firefox/addon/sidebery)
   is a sidebar with treestyle tabs and bookmarks.
-- [SponsorBlock](https://addons.mozilla.org/en-US/firefox/addon/sponsorblock/)
-  skips YouTube video sponsors automatically, works with
-  [invidious](./invidious.md) too.
+- [SponsorBlock](/wiki/youtube.md#automatically-skip-sponsorships) skips YouTube video sponsors
+  automatically, works with [Invidious](./invidious.md) too.
 - [Tampermonkey](https://github.com/Tampermonkey/tampermonkey) is a userscript
   manager that can be used for the following tasks:
   - [Bypass YouTubes age restrictions](https://github.com/zerodytrash/Simple-YouTube-Age-Restriction-Bypass)

wiki/invidious.md

@@ -1,7 +1,7 @@
 # Invidious
 
 [Invidious](https://github.com/iv-org/invidious) is an alternative frontend for
-YouTube.
+[YouTube](/wiki/youtube.md).
 It includes locally stored subscription management.
 
 ## Setup
@@ -23,9 +23,7 @@ or [privacy redirect](https://addons.mozilla.org/en-US/firefox/addon/privacy-red
 For Android there is
 [the UntrackMe app](https://framagit.org/tom79/nitterizeme) (available at [f-droid](./android/f-droid.md)).
 
-### Skip sponsorships in videos
+### Automatically Skip Sponsorships
 
-When using [Firefox](./firefox.md) SponsorBlock can be installed.
-This will skip YouTube video sponsors in YouTube and in Invidious.
-Further informations and links can be found in the
-[Firefox entry of this wiki](./firefox.md#list-of-useful-firefox-addons).
+[In the YouTube article](/wiki/youtube.md#automatically-skip-sponsorships) a section discusses the
+skipping of sponsorships that is compatible with Invidious too.

wiki/youtube.md

@@ -21,3 +21,10 @@ Since yt-dl is stagnant its fork [yt-dlp](https://github.com/yt-dlp/yt-dlp) is
 recommended.
 [MeTube](/wiki/metube.md) is a self-hostable web user interface for
 [yt-dlp](https://github.com/yt-dlp/yt-dlp).
+
+## Automatically Skip Sponsorships
+
+[SponsorBlock](https://github.com/ajayyy/SponsorBlock) is a [browser](/wiki/web_browser.md)
+expansion.
+It is used to skip sponsorships, paid and unpaid promotions and other labelled data on YouTube and
+[Invidious](/wiki/invidious.md).