In the Mozilla Project Weekly Status: 2026-04-20 post this Monday it was projected that Beta 4 release “…still aimed at late this week”. As of the end of business Friday, there was no Firefox 3.5 Beta 4 release. I took a look over at the Firefox Builds board on mozillaZine and saw the post: Firefox 3.5 beta 4 test day dated Friday, April 24th. At first there was a delay in the testing candidate, but it was eventually released. The good news is, it looks like Mozilla is getting ready to release Beta 4 very soon. The bad news though is when I went to get the next “nightly build” I was presented with this:

In some ways I am not surprised there is going to be a Beta 5, the number of blockers over the past couple weeks have either been increasing or staying at the same level. For a point of reference, this time last year Firefox 3 Beta 5 had already been released the and the first Release Candidate was in mid-May with the final release on June 17th. Hopefully there will be more clarification at the next Mozilla Project Weekly Status meeting which won’t be until May 4th.