User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101 Firefox/4.0 Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101 Firefox/4.0 every time a new tab is opened, refresh will not work in it. furthermore, if u change to another website in that tab, the back button will not work (only the first time u change to another url, both Refresh and Back work if u change again and from then on) Reproducible: Always Steps to Reproduce: 1.open a new tab with middle mouse button, from a bookmark or right click -> open in new tab 2.try Refresh (does nothing, same for F5) 3.change website in the same tab, the Back button will not work (only cant return to the page u opened in the new tab, both Refresh and Back work afterwards) Actual Results: the exact same thing as described in details Expected Results: the exact same thing as described in details

WFM - Mozilla/5.0 (Windows NT 5.1; rv:2.0b13pre) Gecko/20110312 Firefox/4.0b13pre ID:20110312030414 Does the issue still occur if you start Firefox in Safe Mode? http://support.mozilla.com/en-US/kb/Safe+Mode How about with a new, empty profile? http://support.mozilla.com/en-US/kb/Basic+Troubleshooting#Make_a_new_profile Does the issue occur with the latest nightly? http://nightly.mozilla.org/

ah did a little testing since it worked in safe mode and found out that the mcafee site advisor addon is responsible for it. works fine with 10 other addons but not with this one.

um another interesting fact. seems like mcafee site advisor was also responsible for laggy tab closing. in the past, a lot of tabs were stuck for like 2-5 seconds before they closed, but now its instantaneous no matter how many i have open

switched to avast webrep addon, same function without the bugs/lagg. it would still be nice to get it fixed though since a lot of people use the site advisor or might come back to it if it works properly. the ratings it provides are good and reliable

Thanks Lukas. You should get in contact with the add-on author and report this issue. That way we can ensure the problem will be fixed for all users in a new version of the add-on. Closing as invalid due to external code.

We're now tracking such bugs. This doesn't mean it's something we can fix, merely something we hope to be able to point vendors to so they can investigate. This is an automated message.

Reporter -> Is this still an issue with that latest version of Firefox and McAfee SiteAdvisor?

problem fixed with site advisor 3.4.0 (tested on firefox 6.0.1)