They told Coleman's to stop making French Mustard.
...Colman’s French Mustard is now unobtainable, since they stopped the line after 65 years, following an EU competition law ruling in 2001 after parent firm Unilever also acquired Amora Maille. It was told to sell the brand or stop making it.
Source (not sauce!): http://www.connexionfrance.com/expatriate-news-article.php?art=297
So, they stopped making it.
A brand that we'd had on the dinner table when I was a child - and which I'd come to know, trust, and even - dare I say it - love, and which I haven't seen on the shelves for ages. And now I know why.
Yes, I know that as an Englishman, I should prefer English Mustard, but ye gods, the stuff's a tad overpowering for the meat - it drowns out the flavour of the rest of the meal, and I find that all you can taste afterwards is the mustard! Which is why, when all's said and done, I preferred Coleman's French Mustard with beef.
Yes, there are other forms of French Mustard. There are even other brands, such as Heinz.
But NONE of them taste the same as I remember.
Brussels, my taste buds HATE you :-(
Yet another reason to tell those gravy-train bureaucrats to go stuff themselves!
* And yes, the title and suffix jokes were intended!