A couple of years back, when working for a small design firm, I put together a little website for a new restaurant in Leicester, called Mobius.

I was quite proud of it at the time, except for the glaring bug. It makes use of the Suckerfish menu system. Due to a (still unfixed) bug in Gecko-based browsers (including Firefox), if the menu intersects with an element which has a style of overflow:auto;, it’ll disappear as soon as you mouse-over that element.

At the time this really annoyed me. I posted on various web-forums asking if anybody had come across the same problem and if so, how they went about fixing it. It soon became clear that it was a bug in the browser, and there wasn’t a lot I could do about it. In the end, I gave up and left it. At the time, Firefox was very much a niche browser, not one who had been downloaded by 80 million users and was coasting comfortably past the 10% market share point. Alas, the site still suffers from the problem, just as it always did.

Out of the blue

Now, I was quite surprised when out of the blue, two years later, someone calling themselves “Event Horizon” emailed me out of the blue with a potential fix for the problem. “Perhaps you could apply this fix on the Mobius site you worked on.” they said. “Not likely” I replied, “I don’t work there anymore, but thanks nonetheless”.

The very next day, I was ever so slightly taken aback once more, when I took a phonecall from Mark Sanders at Chorlton Web & Design. “Two years ago” he said, “you had some problems with overflow in Firefox”. “Indeed I did” said I, “and in a very odd turn of events, I got an email about the fix last night”. “Bloody Hell!” exclaimed he. Very bizarre.

Anyway, I figured that if two people were going to contact me about the problem in the same week, there’s quite a demand for this knowledge. So I thought I’d share the story and the link to the solution. I hope it’s useful to someone.