read aloud works (and way too loud), but volume control has zero effect; only when slid to the extreme left does the volume mute (to zero).
Review added 2026-01-30 for Ubuntu 24.04.3 LTS ; snap info firefox = 147.0.2-1 latest/stable

Routing you to the the Google TTS sales page and using the Demo box instead of hooking into the Google Cloud API is actually bananas. I can't believe that this thing still doesn't have proper voice fetching implementation after all these years.

Not the best. Agree with other users that Edge is better for reading than this. Also I don't like that it automatically sets your setting to allow this developer access to ALL your data unless you change it but even then it piggies back off of google.translate. Also doesn't even read my full text book page just the title and then the page number. I don't like the reading in the extra window either. Idk why its a recommended extension.

Appears to use translate.google.com to provide the service, and the new one on me is that extensions apparently can't block other extensions' requests, since umatrix, ublock, etc can be set to block google, and Rethink still shows FF making attempts. So, it basically reports your browsing to Google...that makes it intentionally spyware in my book. FF's own builtin "Read Aloud" will have to suffice atm.

you have to stay in the window to read, MS edge native reader is much more better

ok

The robot voice is truly awful. There has to be a better way.

Useful and Effective
-This tool is by far the most useful add-on I have on my Firefox. It allows me to quickly listen to wiki pages and Comments on videos without having to look at the text. I also enjoy the feature to add languages. Allowing me to Listen to Dutch pages and stories as well.
-I would suggest maybe a short tutorial video or a Q&A page on how to maximize the usefulness of this tool as many might have over looked features of this add-on. Such as Tutorial on alternate language support and adding voices as well as Tutorial on speed and pitch options.
-Currently Working with Firefox 145.0 (64-bit). Win10 Pro. Version 22H2.

works beautifully

ชอบมาก็อยากให้เพื่มภาษาไทยได้จะสนุกมาก

This has been incredibly useful to me for reading long papers and helping with proof-reading. Thank you <3

The best option currently since there's no annoying ads and extremely light. Would be great if it had a pop-out functionality. Keyboard shortcuts are sufficient though.

Not work on debian 13 xfce

논문pdf 읽을때 사용하고 있음. 도움 많이되고 있고, edge 의 소리내어읽기보다 사용하기 편하다고 생각함. 발음이 너무 tts 스럽지만 무료인거 고려하면 충분하다고 봄.