When comparing Tampermonkey and Stylish vs AdBlocker Ultimate, the Slant community recommends Tampermonkey and Stylish for most people. In the question“What are the best Chrome add-ons?” Tampermonkey and Stylish is ranked 8th while AdBlocker Ultimate is ranked 31st. The most important reason people chose Tampermonkey and Stylish is:
http://userscripts.org/ currently has 113 261 scripts to choose from. http://userstyles.org/ currently has 62662 stylesheets to choose from.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Lots of pre-existing scripts and styles from which to choose.
http://userscripts.org/ currently has 113 261 scripts to choose from.
http://userstyles.org/ currently has 62662 stylesheets to choose from.
Pro It lets you modify any page to your liking
All you need is to write a piece of javascript to run when the page loads, add a custom header and install into Tampermonkey
Or write a piece of CSS and tell Stylish on which pages it should be applied. You can pack several such rules into one package to toggle/import/export at once.
Pro Completely free
Pro Best Youtube ad blocking
Pro Free and open source
Anyone can improve and audit the code.
Licensed with a gplv3 license.
Pro Supports most popular browsers
AdBlocker Ultimate works on Chrome, Mozilla Firefox, Opera, Internet Explorer, Safari and Yandex.Browser.
Pro No acceptable ads
Unlike other adblockers, AdBlocker Ultimate doesn't have any whitelisted websites, ad networks or advertising agencies.
Pro Avoids awful looping problems on Firefox one sees with Adblock Plus and uBlock
Cons
Con Just a browser addon
It is just a browser addon so it will only work with the supported browsers and you have to install it for all browsers separately.
Con Element hiding helper has occasional hiccups.
Con Memory hog that gets worse the longer it runs
Happened with 64-Bit Firefox 62.0.3 running on Desktop PC with 64-Bit Windows 10 Pro with 8GB of RAM.
Con Slow
Like any browser extension it slows down your browser.