Since a few days my browser keeps logging this to the console:
TypeError: this is undefinedbootstrap-autofill.js:1857:9
checkPageContainsShadowDom moz-extension://bc22a49c-9121-4778-acf4-4b9b7fb07b0d/content/bootstrap-autofill.js:1857
requestIdleCallbackPolyfill moz-extension://bc22a49c-9121-4778-acf4-4b9b7fb07b0d/content/bootstrap-autofill.js:334
If I disable the Bitwarden plug-in, it stops doing so.