How to Add Safari search extensions
Install search extensions
Choose Safari > Safari Extensions. Search for “Ultralink,” “AnySearch,” and “SearchPreview” one at a time, and click the “Install now” link under each one on the search results pages.
Explore Ultralinks
Click a highlighted Ultralink and a widget containing several buttons will appear. Click the “W” to read a Wikipedia entry explaining the word or phrase, and also to display image slideshows.
See site thumbnails
Use one of the engines built in to Safari (Google, DuckDuckGo, Bing, or Yahoo) to search for something, such as “Mars missions.” SearchPreview adds a thumbnail image next to each site that appears in the search results.
Change engines
In Safari > Preferences > Search, Apple provides a choice of just four search engines in the pop-up at the top of the tab. Having installed AnySearch, click its button on Safari’s toolbar and you can choose from 18!
Show Ultralinks
Go to any page that contains a reasonable amount of text and hold
ç. Ultralink scans the text and turns keywords and phrases it finds there into links, which are then highlighted to grab your attention.
Search anywhere
Select a different search engine from that list – such as Ask, shown here – then type a word or phrase in Safari’s search field. The search results then come from the search engine you chose from AnySearch’s menu.