Used in userChrome.css. You can hide search engines you don't want to display by specifying their labels.

#contentAreaContextMenu menu:is([label="Search"], [label="Suche (R)"], [label="検索 (R)"]) menuitem:is([label="Google"], [label="Bing"], [label="DuckDuckGo"], [label="Perplexity"], [label="YouTube"], [label="Wikipedia (en)"]) {
display: none !important;
}

You can also display only search engines specified by labels.

#contentAreaContextMenu menu:is([label="Search"], [label="Suche (R)"], [label="検索 (R)"]) menuitem:not([label="Google"], [label="Bing"], [label="DuckDuckGo"]) {
display: none !important;
}

Makes the magnifying glass icon in the context menu white only in dark mode.

@media (prefers-color-scheme: dark) {
#contentAreaContextMenu menu:is([label="Search"], [label="Suche (R)"], [label="検索 (R)"]) .menu-icon:not(menuitem .menu-icon) {
filter: invert(100%) brightness(200%) !important;
}
}

Works wonderfully!
Without any bloated functions.

Amazing extension! One of my favourites.

The only issue is it sees all search engines. I wish there was a way to only see the search engines that are enabled (blue checkmark) under about:preferences#search

找了好久的划词搜索，很好用

All I needed, works perfectly.

Exactly what I needed.

It works! Which is most important.

firefoxに標準でついていても違和感がないほどによくできています。私はこのようなものを求めていたので非常に助かりました！

fire gesture之后，找了好久的划词搜索，终于找到了

Does exactly what it says on the tin and does it well. It picks up your existing Firefox search engines, so you only need to maintain one list. All other similar context menu search tools I had tested required a second list to be added. The only small hassle is that Firefox doesn't allow adding custom search engines out of the box (as far as I know), so I would also recommend another wonderful add-on that is the perfect companion to Simple Context Search: Tom Schuster's Add Custom Search Engine (https://addons.mozilla.org/en-US/firefox/addon/add-custom-search-engine/). These two add-ons working together will significantly enhance your web-browsing experience.

Does the same thing as other extensions, but without any permissions needed. Perfect.

大神，请问有没有火狐五六版能用的扩展？非常喜欢这个功能！

Does exactly what it says, without any extras.

Please add an option to open searches in background without holding down the "ctrl" key.

Do exactly what I need.

very good work, I hope there will be further updates

1. thank you, it is very helpfull. please write where is the config file to change the entrys ???? then you get 5 stars.

2. thanks for answer. now i see > it takes my search engines. that cool. but i forgot where to change the entrys in FF (from google.com to google.ch or like this)