Select a word and select the extension's entry in the context menu. An audio of the word and the IPA transcription will be provided.
IPAs and audios can be updated with these websites:
https://dictionary.cambridge.org/us/dictionary/english/
https://howjsay.com/
https://tophonetics.com/
https://www.linguee.com/
https://www.oxfordlearnersdictionaries.com/
Ctrl+A update the IPA, Ctrl+X set the IPA to its default, and Ctrl+A update the audio.
These shortcuts can be modified in the options page of the extension, as well as another configurations, like display or not the IPA transcription, play or not the audio, beside another ones.
Files with more audios and ipa's can be found here:
https://github.com/wcs7777/data-pronunciation
These files can be uploaded through the extension's options.

Mozzarella

How2Pronounce