User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; @AB_CD@; rv:1.8a4) Gecko/20040923 Firefox/0.9.1+ Build Identifier: Mozilla/5.0 (Windows; U; WinNT4.0; @AB_CD@; rv:1.8a4) Gecko/20040923 Firefox/0.9.1+ Symptom : cycling through a combobox with the keyboard makes the combobox larger and larger. To reproduce : Browse to the url provided, scroll down to the form. When cycling through its options using the keyboard, the combobox gets longer on each stroke, no matter which letter was typed. I've tried the same test on http://www.amazon.co.uk where the product combobox behaved normal... . Stylesheet problem ? Reproducible: Always Steps to Reproduce: 1.Browse to the url provided, scroll down to the form. 2. Select the combobox ('Zoek op rubriek') - click on it with the mouse 3. Cycle through its content using the keyboard. 4. Notice how the combobox gets longer on each stroke, no matter which letter was typed. Actual Results: The combobox get longer on each stroke. Expected Results: Keep the size of the largest entry

I can see that with both Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20041010 Firefox/0.10 and Mozilla Mozilla 1.8a5 Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a5) Gecko/20041008 confirming ->Browser testcase is coming...

Looks like a dup of bug 253679

I verified this got fixed by the patch for bug 292656. *** This bug has been marked as a duplicate of 292656 ***