This is a great language learning tool to add to your arsenal Rated 5 out of 5 stars

Let's say you speak English and are learning French, here's how it works: You highlight a word on any page in your browser that you want to learn and right click, then you click "Add Phrase" in the context menu. A box pops up that shows you the French translation and asks you to confirm it's what you want. Any time after that when the English word would otherwise be on a page, the French word shows instead. If you forget what the translated word means, simply place your mouse over it and the original pops up.

As someone who spends a lot of temps browsing the web (see how that works?), I've been using this for a little over a week and it has already expanded my French vocabulary. Seeing the words you're learning in context is a much more efficient learning technique than, for instance, flashcards.

There are many ways in which this add-on could be enhanced over time, too. Adding pronunciation, randomly translating words, contextual conjugation of single words. To the developer, thank you very much for spending your time making this for everyone. You've done a great job.

Here is my list of English to French translations, if anyone would like to use them as a starting point: http://pastebin.com/raw.php?i=J7ktHi69 You may have to save it as "mingaling - target fr - source en.txt" to use it with the Import feature.

Best language learning addon i could find Rated 5 out of 5 stars

this is a very useful app if you want to passively learn the language you're studying. it has certain limitations, and i have to sort manually my wordlists from time to time to translate correctly. and i have to get creative on how to translate certain words and add conjugations as suffixes, it clutters but it's useful. Except the need to tinker a bit, i fully recommend this to any language learner and i hope it will continue to improve.this addon needs a forum and a community. There's so much i want to ask others who are using it, ask about how they use it and to share word lists etc.

Does what it does. And is the only extension that does it. Rated 5 out of 5 stars

I wrote a long review and somehow mozilla or firefox didn't let me post it.

Gist
PRO: Ability to choose which words to learn
CON: No ability to let the computer choose random words for me to learn.
PRO: The developer listens to feedback, has already added random words to his to do list.

This review is for a previous version of the add-on (0.724). 

Rated 5 out of 5 stars

I have some additional ideas regarding your fantastic addon! Let me know where can I explain, describe them.
---------- This is my previous feedback: --------
Very original approach, idea and fulfillment! Thank you!
But there are few things that I'd like to notice.
1. Import does not work and it is painful.
2. It is worth to add possibility for middle click for "Add phrase" - this action is used very often.
3. It is worth to allow reverse substitution too and even substitution in both directions.
4. It is worth to add the field with original, emphasized phrase to give ability to edit it too. Moreover - the dialog also will be simflified - we will not need the additional stage "Add phrase in native language" when no word is highlighted and "Add phrase" is pressed - it'll be unified dialog for both cases.
But anyway - thank you very much for such awesome addon!

This review is for a previous version of the add-on (0.724).  This user has a previous review of this add-on.

simple - PERFECT!!! Rated 5 out of 5 stars

i spend a lot of time surfing everywhere and this program will improve my knowledge about English 2 in 1 TWIX :P

This review is for a previous version of the add-on (0.6.9). 

Absolutely Phenomenal Rated 5 out of 5 stars

I absolutely love this addon. It makes using a computer more fun!!! ^_^

Now I can work, learn and enjoy myself, all at the same time!!!

Seriously, you've made my internet experience more enjoyable ^_^. Thank you!

This review is for a previous version of the add-on (0.6.51). 

Rated 4 out of 5 stars

Works great! My only complaint is that only languages supported by google translate are supported in the addon. You should let us add our own language(s) to list. For example, I am currently trying to learn Esperanto but since it is not an option I selected Turkish and manually entered in the translations for each word. Now, I selected Turkish because I know I will never actually try to learn Turkish. But it would still be nice to add languages to the list.

This review is for a previous version of the add-on (0.6.51). 

will address your complaint

Right now, with Google shutting down their Translation API on Dec 1, I'm bogged down with working out a replacement. I'll add the capability you requested eventually, and no later than when the Google Chrome version of ming-a-ling is released.

Great while it worked Rated 3 out of 5 stars

This add-on is a great way to see the language you're learning more often. I found it fun to use while doing a lot of reading. Until the little 'm' icon disappeared, that is. I tried messing with settings and couldn't get it to reappear, even tried other versions of Firefox/the add-on. Some of the options stopped working, too. No clue what happened. I hope that future updates will fix this for me. I do recommend it despite being unable to use it myself.

This review is for a previous version of the add-on (0.6.51). 

Enable Add-on Bar for Firefox versions 4 and greater

Sorry it's failing you. My best guess about the problem you're having is that your "add-on bar" (formerly called the "status bar") is hidden. The Firefox developers decided to hide it by-default starting with version 4 (or 5?), to save screen space. Click View > Toolbars > Add-on Bar.

Rated 5 out of 5 stars

Nice add-on. It useful for those stubborn words you just can't seem to memorise. It's a good way to learn vocab especially starting out because most conversational or common words will appear several times in a webpage. This gives you a kick start in your language learning process. Highly recommended.

This review is for a previous version of the add-on (0.6.51). 

Excellent Tool! Rated 5 out of 5 stars

I really enjoy using a tool like this to supplement my language-learning. It's such a simple idea, it's a wonder no one implemented it before. This add-on is incredibly easy to set-up and does just what it says. I look forward to the updates, as many languages like to make it difficult to learn words and phrases what with their tenses and possessive adjectives and such.

I thought it would be a good idea to have ming-a-ling reverse its current function, too: for instance, once you've learned a language's words well enough, you can have pages automatically translated into that language, while words you want to learn how to spell could be shown in your source language.

This review is for a previous version of the add-on (0.6.51). 

Rated 4 out of 5 stars

Great add-on to learn language. However, ming-a-ling doesn't function correctly when the source language is Chinese and the target is English. I guess it is because that there is no space between words in a Chinese article. Hope that ming-a-ling will fix this in the coming version... :)

This review is for a previous version of the add-on (0.6.51). 

Best language learning tool... EVER! Rated 5 out of 5 stars

Been using it for about 2 weeks now... This thing is awesome! I use it for learning German and it is working great! You know how even though you know some words in another language you just can't think of them when you go to say them? Only recognizing them once you see or hear them again... Not anymore, with mingaling you will learn to remember and connect words almost instantly because you will have to see and translate them everyday (lets you toggle on/off with by left clicking the status bar Icon once) I've only been using it for a couple weeks but it's been working great!! Can't wait for word sense disambiguation!!

This review is for a previous version of the add-on (0.6.51).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

Great, awesome, wonderful extension. I'm using this plugin every day to reinforce my mandarin vocab.

This review is for a previous version of the add-on (0.6.4). 

Rated 5 out of 5 stars

Great way to learn vocabulary of another language while surfing the web. I like that you can get the definition without leaving the page you’re reading. I’m going to school in a second language and this add on is complementing being immersed really well. Learning new words was slow at first but improved as i got better at deriving the meaning of
words from context, which has turned out to be helpful in conversations too. The add word feature is easy to use. Thanks for this amazing idea and add-on!

This review is for a previous version of the add-on (0.5). 

Rated 4 out of 5 stars

This is a fun little add-on. It worked just as described.
I am not actively learning a language at the moment, but I already know 10 new German words that my brain can't help but translate whenever I see them on the screen. And this is only after about a week of using ming-a-ling.
May be an idea to have a list of words that are spelled or are pronounced similarly and have the same meaning. For example, the English word "contact" and it's German translation "Kontakt". You would need to generate this list for each language separately, and it will not work for all languages of course. This is a useful way to have a set of vocabulary words that you didn't even know you already knew (hooray!).
Good job!

This review is for a previous version of the add-on (0.45beta).