But adding code to Firefox 3.6.20 may be tough because of the tight deadline: Developers are supposed to "freeze" the update's code Aug. 1, 10 days from today.

"If we are going to do something ... we have very little time as 3.6.20 code freeze is soon," said Mozilla.

Earlier this summer, Mozilla said that the August update might be the . Mozilla has already halted security and other updates for 2009's Firefox 3.5, as well as for this year's Firefox 4.

Firefox users were generally unhappy with the Toolbar's retirement.

"Nooo," wrote in a Friday comment on Google's blog. "My employees and I depend on the Toolbar for accessing bookmarks across machines. We've been doing this for years. What are we supposed to do?"