The add-on does support internationalization. Right now there are translations for French and German. I'm always looking for contributors to translate into other languages. If anyone wishes to help, visit the support site on github and edit the files in the /src/_locales/en/ directory. (https://github.com/ssborbis/ContextSearch-web-ext/tree/native-app-support/src/_locales/en)

> By the way, if the right-click menu display position can also be customized (for example, you can choose to display the position under copy and paste), it is even better!

There is a setting for positioning the Quick Menu relative to the cursor with customizable pixel offsets. Do you mean moving the "Search for.." menu item higher in the context menu? Unfortunately, that cannot currently be done with the webextensions API

> - close after search

Ready for 1.6.3

> - empty search bar after search

The current behavior is to display the last search on a per-session basis. The last search should be highlighted, ready to be replaced with the first keystroke. Closing Firefox will clear the last search from the session storage. Adding the option is trivial but I'm not sure it's necessary. Specifically, what issue are you having with the default behavior?

(edit) This was not working properly under linux. Fix ready for 1.6.3

> One thing that bothers me is that modifying the default engines; removing tracking parameters for example, results in a 'name already exist' error. Which is bizarre.

That's a definite bug that must have popped up when I added the ability to change the name. I'll fix that today.

(edit) 6-13
v1.6.0.3 should fix the problem

> 1) Javascript/Bookmarklet support.

(edit 6-15) Ready for v1.6.1

>Edit:
>Use short javascript snippets for more advanced local operations e.g. Find&Replace all instances of a word in a text box or copy and format selected text as bbcode, etc.

Are you wanting to access bookmarklets from the context menu when using the option to manage search engines via bookmarks? If you have a github account, start a new topic at the support site so I can get more info.

> 2) Search button: Save search history / always show last query
> 3) Search button: Make autocomplete optional

(edit 6-14) Ready for v1.6.1

> 4) Search button: Match browser theme

(edit 6-14) Having some problems with this one. Can't seem to get color values for built-in themes like Dark. I'll keep on it.

> 5) Search button: Support middleclick
Ready for v1.6.1

(edit v1.4.2)
Subfolders and separators for the context menu are live in beta for this release. Search engines can be organized from a bookmark folder after enabling the option and granting the Bookmarks permission.
---------------------------------------

Do you mean a tiered menu and separators in the context menu? I'll check it out.

Hmm that's odd. It's been working for me in FF59. Would you mind answering a few questions so I can help you troubleshoot?

What OS are you using?
What website isn't working?
Is Quick Menu enable in ContextSearch options?
Have you loaded your search engines?

(edit) Good deal!

Try 1.2.4b2. Added a few options for closing plus a way to keep the menu open for clicking multiple search engines

Do you use the 'close after ? seconds' option in the other add-on? It's not difficult to add, but I can't think of a scenario where it's useful.