The only way of making it work is disabling it and enabling it for every page. It gets disabled again if you reload. It's unusable.

Doesn't work properly with Firefox 111.0.1 (64-bit). I restarted the browser after installation but had to turn the extension off and on for each new window/tab in order to swap the smart quotes. Functionally broken, sadly.

Finally! I was so tired of Tumblr using straight quotes, but with this, i don't have to manually convert them anymore

I love the intention behind it. Been waiting for such an extension for years. I hope it works!

Edit: Does not work on Wikipedia.

This has been my constant frustration with writing on the web. I'm so glad I found this.

Does not work with French unfortunately :(

EDIT : Ok my bad, I was expected it to work with " instead of <<

EDIT 2 : As Jucá Costa said, it conflicts with some inputs. For example : it does not work correctly inside wikipedia (VE) editor (seems to work but after the page is saved you get something totally different)

Moreover, the plugin always keeps changing lang back to english.

It works in more basic pages, but does not seem to work with text boxes that are loaded later with scripts, like in Twitter. Also, I did not find a configuration page to set blacklisted URLs.