I had to downgrade to 0.4.5 because this version works much better for me, even though I have the latest version of Firefox. In 0.53 I had difficulties on Amazon, Wikimedia and DeepL. For example, the Wikimedia page was displayed brightly in 0.53, but this was not the case until 0.4.5. In version 0.4.5 everything works again for me as I am used to. I wonder for how long, because there are constant Firefox updates and at some point version 0.4.5 will stop working. If it is updated again to 0.53 I will try to install 0.4.5 again.