Lingvo Online! have been already updated to version 1.3.16, which support Firefox 3.5 and have some new feature. See experimental section of Addon to download it (due to pending review status of that version). I hope it will be published by editors soon.
Not converted into a full Firefox 3.0 extension, making it unavailable for latest Firefox versions!!! :-( Moreover, only supports Russian, English, German, French, Italian and Spanish. Finally, it opens a full new window/tab, not just translate in the right-click context menu like some other translation extensions do!
It does call out Lingvo 11 for translating a word, so I noticed no bugs in the add-on itself. But when you occasionaly give Lingvo several words, it falls on Word-by-Word translation (it's incompatibility of Lingvo 11 with Limited user on XP, I suppose). I would be glad, if you used not the programm Lingvo, but its dictionaries for your own translating engine, so that people wouldn't depend on bugs in Lingvo. Nowadays people must either have an Internet connection or Lingvo to use your add-on. And if they choose local Lingvo, they can call it out without help of your add-on just by Ctrl-C-C or Ctrl-Ins-Ins. Best regards.
Nice service, though lingvo.ru has an official plugin now - could be downloaded on the lingvo.ru homepageNice service, though lingvo.ru has an official plugin now - could be downloaded on the lingvo.ru homepage. Although it still is buggy - more details on http://leonardinius.blogspot.com/2008/08/few-words-about-lingvoru.html
In 99% of situations I translate from English to Russian. Each time I need three clicks: - get context menu - choose "Translate by Lingvo" - choose English
Is it possible to set a default language? Here is the suggested UI: - Last time user chose some language, remember his choice - Next time it is enough to click on "Translate with Lingvo" to translate from this language
Option #2 - In FF menu add an option that allows for setting the default language - Next time it is enough to click on "Translate with Lingvo" to translate from this language
Очень хорошее дополнение, но всё перечёркивает то что при настройке вызова локально установленного лингво(12-шка успешно запускается) после запуска браузера и непродолжительного юзанья исчезает из контекстного меню "Translate...". Буду рад если пофиксите это.