Bug trackers have had a couple false starts with the release of Firefox 2.0, according to a top Mozilla engineer.
Of the two vulnerabilities reported since the browser's release on Tuesday, the first was patched in a previous version and the second alleged problem couldn't be replicated during testing, said Mike Schroepfer, vice president of engineering.
The first problem caused the browser to crash in some cases when text was displayed. The second was described as a cross-scripting attack, and sample attack code was posted on the internet, Schroepfer said.
"The snippet [of code] didn't actually do what was claimed," he said. "We don't have enough information to understand if there is an issue or not."
The problem is tricky to fix, but engineers are looking at it, Schroepfer said. Firefox 2.0 debuted just a few days after Microsoft unveiled Internet Explorer 7.0, reignited a long-standing debate over which is the better browser.
"It's a really solid release overall," Schroepfer said of the new Firefox.