this post was submitted on 08 Aug 2026
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Edit: I found out that the add-on warns about high CPU usage for some of its presets (Preferences->General->Presets). Using a different preset has removed that ~10% CPU usage.

cross-posted from: https://lemmy.ca/post/69070329

Some preliminary context: Since one or two updates ago, I've noticed that Firefox is using around 10% CPU even then all tabs are unloaded. This didn't happen before. The add-ons I use are still the same, and I have blocked the new LLM functionality. (Maybe someone else noticed the same?) Anyway, in order to investigate, I'm switching off the add-ons one by one, as usually done, checking if the situation improves.

While doing so I was wondering whether I still need Canvas Blocker. I see its most recent reviews are 4 years old now. Does anyone know whether it's still needed for privacy, or if Firefox now provides some of the same functionality built-in? I do use AdBlock Origin as well.

Thank you for info and opinions!

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