Enabled me to get Google UK to come up on new tabs (FF96.0.3), which in turn allows me to select country>UK each time I do a Google search in a new tab, which I was not able to do with the default Firefox new tab - which went to Google (.com) and no option to filter for UK sites. Took a bit of fiddling about to get the search URL term syntax right, but that was before I saw the example in Screenshots. Reminder to remove the Search Engine Helper after use (large blue 'Remove' button in the title box). Many thanks. (Afterthought, I have since found an alternative FF add-on in this series which was last updated in 2020, but looks as though it may be simpler to install, but limited to getting Google.co.uk onto the list of available search engines: https://addons.mozilla.org/en-GB/firefox/addon/google-uk-search/)

不错了，可以成功添加。

Replaces the sorely missed capability Firefox used to have for adding a search engine based on the query URL. It also made it easy to add an icon for each search engine. The export function also works well. Unfortunately, the import function did not work for me, which is why I gave it 4 stars instead of 5.

Thank you!
But after adding a search engine, it can be used only in the search bar?
It is not visible in the context menu. The thing is, I do not like the search bar, most of my searches are through selecting text then via right-clicking.
Will you implement this?

very very simple to use & works perfect on my current 57.0.4 64-bit. thx loooots for sharing!
just hope maybe the developer shall update so that it can detect the URL of the query field automatically