Newer versions of firefox reserve the Forward Slash ” / “ and Apostrophe Keys ” ‘ ” for use in some other functions.
The workaround for those who do not use those keys for firefoxes purposes is as follows:
as explained here
- Go to about:config
- Find accessibility.typeaheadfind.manual and set it to false.
you may need to restart the browser but it should then work
Happy commenting your code. 🙂