Just what I need, works perfectly with no hicaps as if it's part of the site and not a third party extension.
And extra functionality is wonderful and well though. Love the make subtitles selectable one) Deservies 6 stars out of five!
The only thing I wish is the possblity to change font color of the Secondary subtitle sepratly of the Primary one just like with size.

I am trying to use this add-on to take advantage of very useful shortcut of rewinding and forwarding by subtitle (A and D). However, it ignores the font that I have selected in my Netflix profile options. So it would be great if update the add-on so that it respects the profile font setting, or even better, add "Font" options to Netflix Bilingual Subtitles.
Also, I don't like that I can't select styles such as "Bold," "Regular," "Italic," etc with Netflix. It would be great if you could add "Style" settings, so that I can use "Block" with "Regular" style instead of "Bold," or use unavailable font such as "Arial". Thank you for considering my suggestions.

Hi, since today it doesn't work at all. Tested also in a new profile.

[EDIT]
Version 3.9 is OK, the wifey no longer shouts at me, thanks for fixing!

Works great thank you! Only mild inconvenience is that I sometimes have to disable/enable the subtitles for them to show up.

Incredibly useful for language learning. I haven't spotted any issue yet! Thank you so much for this useful Addon!

真的不错！！我网飞字幕的字体大小调整不了，装了这个就可以了，还有双语字幕，支持支持！

I have tried this addon twice in a year, still having the issue that FF Netflix/the window is freezing like every 15sec., sometimes also the subtitle getting freezed, so few seconds later all the delayed text just run over the display. Uninstalled after 30min right away. Good idea, but buggy. P.S.: Learning mode should have trial mode/test mode, otherwise I won't just pay for something I have no idea how it's working. Keep up, I hope I will install it once again sometimes. :)

Works great, and the options to adjust subtitle font size are super!

Very nice, I like the shortcuts but sad that we can't add a background for the subtitles.

it doesnt work, I dont have the option to put the second subtitle... I dont put 1 star to support you, I would really like it to work
if you fix it i'll change my rating

edit : I dont know how to reply to you so here is what you requested, hopefully you will see it

Firefox 93.0 / 64bits
Windows 7

edit : it still doesn't work but the developer is very nice, i put my rating up to 4 stars