Glad to hear that you like the add-on.

Unfortunately, there are some websites (Twitch is a good example) that have taken scrollbars a step further. Instead of using an actual scrollbar, these websites have designed custom components that look and behave similar to scrollbars, but they are fully custom. Since these are not actually considered "scrollbars" by the browser, it's not currently possible for me to make any modifications to these scrollbars.

As for the transparency issue, some websites have not set the background of the page (meaning it stays white) and instead have a large panel that they have set to be the width of the screen. The width of the screen does not include the scrollbar, so the white background hiding below shows through. Much like the issue above, there's no way for me to fix these either.

Hi James. Sorry to hear you had issues with the add-on.

As far as the scrollbar buttons go, currently Firefox only supports limited scrollbar customizations. That only includes colors and very limited width settings. As Firefox adds more features (which I hope they do), I will be able to add more functionality.

As for no visible changes being shown, it's important to note that there are some pages the add-on cannot make changes to. These mainly include internal browser pages (settings, etc.) and pages that are generated by other add-ons. For more information, see: https://github.com/WesleyBranton/Custom-Scrollbar/wiki/Pages-this-extension-cannot-modify

Bonjour! A feature that allows users to disable the add-on on specific websites is on my to-do list.

In the meantime, perhaps you can use website rules to give that website a specific scrollbar appearance. For more information, see: https://github.com/WesleyBranton/Custom-Scrollbar/wiki/Using-website-rules

Sadly, the narrow scrollbars is easily the more common feedback I get. I hope that the Firefox developers allow more customization options in the near future.

Unfortunately, Firefox only supports very limited scrollbar customization at the moment. I hope that changes in the future so that I can add more functionality for Firefox users.

Glad to hear that you like the add-on. I've tested that setting on Windows and everything seems to be working properly. It could possibly be a platform-specific issue. If you could email me your operating system and Firefox version to addons@wesleybranton.com, I'd be happy to try and look into that issue.

Glad to hear that you like the add-on. I haven't had a chance to update the wiki page with information about why that new permission is required. I'm probably going to update that document later on today.

In short, this has to do with some adjustments that were made to make the add-on work properly for content that is embedded within other websites. Some older versions of Firefox will not share information about what websites are open unless they have that permission. Unfortunately, I can't apply the permission only to those versions of Firefox that need it, so I have to add that permission for every very of Firefox.

I plan on posting a more detailed explanation to the permissions page: https://github.com/WesleyBranton/Custom-Scrollbar/wiki/About-Permissions