I think I also had this issue using Cinnamon once, but then I just used VLC instead. Never bothered to look into why. Worked fine in GNOME for me though.
I found a thread with a similar issue: https://forums.opensuse.org/t/flatpak-mpv-broken-since-20240306-snapshot/172981
There it seems the issue was audio. Try running the flatpak version with flatpak run io.mpv.Mpv --ao=pulse path-to-your-media-file
What options do you have if you still want to use uBlock Origin?
For the flatpak version the mpv.conf file can be created in ~/.var/app/io.mpv.Mpv/config/mpv/. You probably don't need to link it to the yt-dlp python file as the flatpak mpv version should come with the latest yt-dlp.
Mint is known to use old software in its repositories as it's based on Ubuntu LTS. The flatpak mpv should work though. flatpak install flathub io.mpv.Mpv and then run it with flatpak run io.mpv.Mpv https://www.youtube.com/watch?v=dQw4w9WgXcQ
If you don't want to type flatpak run io.mpv.Mpv all the time, you can create an alias in your ~/.bashrc file. For example: alias play='flatpak run io.mpv.Mpv'. (After editing your bashrc file, run: source ~/.bashrc to activate the change). Then you can run it with play https://www.youtube.com/watch?v=dQw4w9WgXcQ.
Your mpv or vlc versions may be too old. Try updating them to the latest versions.
Sounds like a bug in the filters used by Adblock and Adblock Plus. Afaik uBO or Adguard aren't affected.
Just Firefox/Librewolf with uBlock Origin is enough. The more extensions you add, the larger the attack surface and chance of site breakage. A common mistake many do is to add multiple blockers on top of uBO which will decrease uBO's ability to defuse various anti-adblocks. This also includes addons like Privacy Badger, Ghostery, DuckDuckGo Privacy Essentials, etc. uBO have good enough privacy protection enabled by default. If you want more, enable some other privacy filter lists. And if you know what you're doing, enable hard mode by blocking all 3rd party requests and JavaScript.
If you want to feel more secure when adding more extensions to your browser, then only use Firefox addons that are recommended by Mozilla. Those extensions have gone through a review process to make sure they don't contain anything malicious.
If you're like me and don't care about recommendations and being able to comment, then use Freetube with sponsorblock enabled.
The performance issues are because of Adblock and Adblock Plus: https://nitter.net/gorhill/status/1746263759495077919#m
It affects more sites than just YouTube.
Adblockers will still be allowed, they will just be crippled a lot. It will probably be the same as the adblocking situation on Safari.
If any 3rd party browser vendor wants to maintain a Chromium fork with Manifest V2, they can do so, but with the risk of code maintenance hell. They would also need an extension store for Manifest V2 extensions. Otherwise V2 extensions needs to be installed manually.
Browser vendors can also create their own separate ad blockers that aren't affected by the changes. For example Brave Shields, Vivaldi adblock, Opera adblock, etc.
By doing that you're wasting bandwidth on all the CDNs that hosts ALL your filter lists. Updating the Quick fixes list should be enough. (Which updates every 5 hours automatically on uBO 1.54).
How to manually update Quick Fixes (Manual updates push back automatic updates.)
uBO Lite have a lot of limitations:
Appending
(intext:“modlog” & “instances” & “docs” & “code” & “join lemmy”)to your search query will search most instances. Works with Google, Startpage, SearXNG afaik.