A Gateway to a Set of Customizations of Everything On Firefox Rated 5 out of 5 stars

As described, it provides tools for customizing not only web pages, but the browser (Firefox) itself. The site userstyles.org has many styles already made that can make the way you experience Firefox to the way you like. For instance, I found a great style to change the default homepage to have a custom background and show no logo (my background is the picture of a beautiful Fox). I also customized my new tab page to show the page tiles with a 16x9 aspect instead of 4x3. I found styles that will hide ads on some of my frequently visited web pages and make them more tidy. I also made one of my own for such purpose.
I disagree criley's argument for stating the Firefox version is inferior to the Chrome version. A single style document (css) can have many sections to affect different URLs in different ways. In the Chrome version the sections for different URLs are separated into different sub-documents. Indeed, if you write a style with the Chrome version, you will need to convert the style into the Firefox single document format before publishing it. That other implementation ads a level of abstraction, but little is gained from it. Yet there is one point were the Chrome implementation is better: Error checking in the Chrome version is better. But that version lacks the automatic word completion you get in the Firefox version. I think the best version is whichever matches the browser you like, and Firefox definitively renders my web pages more beautiful than the alternatives.

Inferior to chrome version Rated 2 out of 5 stars

Shockingly, this extension does not support per-url filtering.

The chrome version of stylish includes in the editor a URL filter including regexp that allows each style to be applied to only specific sites.

One should not have to rely on the bugged firefox implementation of "@-moz-document domain("")" when such features should be available in the extension by default

Must have Rated 5 out of 5 stars

When I'd started to use this add-on I realised that stylish was a thingie I was missing so much for years.

Rated 5 out of 5 stars

The best addon ever. Thanks!

Rated 2 out of 5 stars

bien

Great Rated 5 out of 5 stars

Since I have an Amoled screen I use black backgrounds. In the meantime I am so used to them that I never switched them off again. Much easier to read and saves battery power.

Needs an update button in styles. Rated 4 out of 5 stars

This really needs an update button like Chrome Stylish has. Otherwise, I have to go to every style I have via userstyles and update it. And the update command in regular firefox isn't working either. I'd much rather have a button that directly updates.

Update: I meant the update mechanism. It isn't working. It actually has never worked on firefox and I have been developing skins for firefox for 4 years. The only way it seems to work is if I go on userstyles and update it there.

Stylish hooks in to Firefox's add-ons update mechanism, so if you check for updates for your add-ons, you're checking your styles too.

Android version is lacking. Rated 4 out of 5 stars

The PC version is perfect.

The Android lacks a style editor. I saw the Dev's reply that no one would be writing styles on their Android device. Sure, but you can send it via e-mail and then copy and paste.

I have a lot of custom edits of styles available on userstyles, often ones that hide block that people most likely need but I do not, so there's no point in uploading them and I would love to have the ability to use them on my tablet and phone.

Edit: One option to let people use custom css would be to allow importing not only from the web, but also from the device.

You can also upload the CSS file somewhere and use the "Install from URL" feature. This will also allow you to update your style.

There's no way to install your own scripts or edit scripts. Rated 1 out of 5 stars

The addon I got looks nothing like what is pictured. I see no way to edit scripts. And the only way to install scripts is from userstyles or an URL. And once you do install a script from userstyles, the only options are to disable or remove them. Pretty useless like this with no way to edit scripts.

Stylish on Firefox for Android is different than it is on PC or Mac. Specifically, you can't edit scripts because I figure no one's going to pecking CSS into their phone...

Good Stuff Rated 5 out of 5 stars

Thumbs Up

Love the Addon, but Why are all styles set to global? Rated 5 out of 5 stars

Even when I assign the style to a specific page or site? I don't want to change every site.

See https://github.com/JasonBarnabe/stylish/wiki/Applying-styles-to-specific-sites for how to make them specific to a site.

Rated 5 out of 5 stars

Supremely awesome plugin! It's one I've always had installed since I first used Firefox!

Update? Rated 5 out of 5 stars

There is no option to Check for Updates to my installed userstyles. I would open the standalone Stylish Manager and use the Update button there, but there is no toolbar button for opening the standalone window. How am I supposed to check for userstyle updates? I'm certainly not going to right-click->Check for updates for each and every style.

EDIT: I didn't realize that they "Check all add-ons for updates" option also checks for UserStyle updates. I just wish there were some visual way of showing which styles were updated.

Use the button to check all add-ons for updates. It will check for updates to styles too.

Rated 5 out of 5 stars

Great extension.

p.s. How to remove default code formatting in stylish?

Rated 5 out of 5 stars

Awesome addon. With e10s enabled however, custom fonts do not work.

Doesn't work on Firefox Developer Edition Rated 3 out of 5 stars

Been using it for awhile, but I recently switched to Firefox Developer Edition and it doesn't work any more. Even with all other plugins and add-ons disabled.

Rated 5 out of 5 stars

The definitive extension for theming your browser and websites.

What should you use Stylish for, I here you ask?

1) Create a global theme for all websites. Firefox is very limited in this respect, and other extensions rely on GUI to make changes which means you'll lose the level of customization you get with Stylish and end up frustrated when making changes. You'll also find other extensions which offer themes for websites will struggle to apply it during loading, which means if you have a dark theme, you'll be pestered with white flashes during page load.

2) If you're not happy with how your global theme treats a particular website, create an exception for that website, and find/make a theme catered for that site.

See "Advanced matching with regular expressions": https://github.com/JasonBarnabe/stylish/wiki/Applying-styles-to-specific-sites

3) If you're partial to dark themes or backgrounds, you will find yourself annoyed at the white flashing of pages when opening new tabs or websites. Use stylish to change the background color of "about:newtab", "about:blank" and speed dial extensions that will flash white during load regardless of its background color settings.

EDIT: The "edit" button no longer does anything other than open another firefox window (but without showing anything). Weird. I've had to switch to an older version (using 1.4.3).

Rated 4 out of 5 stars

Really Nice!, A bit heavy on the memory side, but nice overall!

Very Good Rated 5 out of 5 stars

Very good addon. It would be nice to have the option of editing the stylesheet with a preferred editor, not that big of a deal though. Good job

I definitely hate the versions beyond 1.4.2! Rated 2 out of 5 stars

When I write a new style, there is no longer a popping-up window, instead the Stylish window open in a new tab, and if I open it in another window, I have to re-size it all the time, and there is a bunch of extra bars for the tabs, the address bar and the bookmarks just like the rest of the browser inside of this window and I hate it so much!

Also, a lot of things does not seems to work on the new Firefox with it. I used to create some cool designs for the NewTab page and now #newtab-search-container { display: none !important; } for example can not be done. Something stronger for everything in this page is causing it to remains, whatever you do. Same with the UI of Firefox for the favicons and so on. I am not so sure, but it could be due to the new version of Firefox.

And to end with, the version 1.4.3b1 and beyond got what I believe is the auto-complete CSS feature which will auto-type some extra parenthesis, quotes and even do space-tabs for you and I find that really annoying!

Let those things be selective options please.

The options of the new Stylish editor are the same as Firefox's developer tools. If you press F12 then click on the gear icon, options you change there will take effect in Stylish too.