Fulvio, how are you saving tabs without some sort sort of tabbing extension? I'm not familiar with the Tabs file you mention.
I'd just like to reiterate, the popup blocker in 0.10 is a piece of work. This is the
complete list of known, verifiable weaknesses:
- HTML content designed to look like windows: an unrelated issue that I include in the list only because some folks don't see it that way.
- Events originating from the user, like clicks: mouseclicks and the like are allowed to do as many things as the page author likes. So for this reason people are sometimes surprised when e.g. they click some link on a site, and this link does what they expected -- navigates to some new page -- but also opens a new window. It's a user-originated event, and it's pretty much allowed free reign. This is a technique common to some sites like lycos or tripod. The "ATI All-in-Wonder Radeon 8500DV experiences" link at http://janvlug.tripod.com/ is an example, as are several other links at that site.
- Alerts have always been allowed.
- Closing the webpage in some way: this is a regression in Firefox 0.10 PR1 that I claimed had been fixed in recent builds, but another variant has turned up that isn't fixed at time of writing.
- Plugins like Flash and Java: these are allowed by default to open new windows, but there's a pref for disabling even that.
That's it, the complete list. So many holes in the FF 0.9 popup blocker have been filled, and holes remaining in 0.10 are almost all intentional. No clever salesman has discovered a trick of timing; none of the common, marketed exploits have any effect. Those are big words and I stand by them.
Admittedly there are several (hundred?) users who describe varying levels of popup blocking weaknesses ranging the entire gamut from completely nonfunctional to unstoppable control freak that never allows a new window to open at all. As far as I know, and I don't know everything for sure, these people without exception are reporting problems caused by incompatible extensions. The tabbing extensions like Tab Browser Extension are always the worst culprits.
Which takes me back to my opening question, what's this Tabs file you speak of?
PS a suggestion: if you haven't done it already, disable a website's ability to open a popunder. In Firefox, that's Tools Menu -> Options -> Web Features Panel -> Advanced Button, and uncheck "Allow Scripts to Raise or Lower Windows." That prevents a website from hiding a newly opened window behind your window; it makes all popunders be popups. It also stops website authors from imposing themselves on you in yet another way. That box is never checked on my system. But most useful to this discussion, it makes it obvious exactly when the popup was opened, so it'll be obvious if the unexpected windows you're seeing are opened by the
events originating from the user "vulnerability."
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20040923 Firefox/0.10