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firefox is slow and javascripts on the most web sites is crashing. for example if I open facebook ? I see messages which script https://fbstatic-a.akamaihd.net/rsrc.php/v2/y5/r/QNxOsuxyVYx.js:27 doesn't answer, or in support.cdn.mozilla script https://support.cdn.mozilla.net/media/js/wiki-min.js?build=be7f51e:1 doesn't. This problems I see regulary in many web sites.

I fully reinstall my firefox, but it isn't help me This problems I see only one my pc which I use Firefox.

Firefox prompts update for shockwave flash. Downloaded installer but repeatedly fails at 50%, reads "failed to initialize." Redownloading the installer leads to the same result.

Firefox has worked perfectly well for some time on this machine (Dual core AMD Athlon with XP SP3). This morning at startup Firefox opened on my second (DVI) monitor, not on its usual VGA connected screen. I used the maximise button to shrink the window from full screen and dragged it to the correct monitor and remaximised it. It then was very slow, mouse movements happened in large increments making it difficult to point and click, switching tabs resulted in a slow vertical wipe to reveal content rather than instantaneous switching, loading websites was very slow indeed. Using task manager indicated that one CPU core was running at or near max much of the time, particularly when moving the mouse. I rebooted and also reset Firefox to no avail. However, if I move the Firefox window from the VGA monitor to the DVI one then performance/resource usage is normal. I can open other apps on the VGA monitor (eg MS Word) and they behave normally. It just seems to be Firefox that is having this problem.

When I try to open any website, I click enter then the address bar just clears and nothing happens. This even hapens in the search bar (but the entered string stays). I've tried following these steps - https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors but nothing works. I even removed the "Firefox" folder from the private folder ("%APPDATA%\Mozilla\") and the problem remains.

The toolbars on my firefox are gone. I can't do anything with it and have to use Internet explorer for now. I unintstalled and reinstalled but that didn't work. I have a screenshot, how do post it?

Firefox doesn't open, though it opens once in a while. It shows in task manager and takes up 50% CPU usage, and ending process and retrying doesn't work. Profile manager doesn't open either. There's no error message, and have restarted laptop (Windows XP) many times, but no results.

Help would be appreciated!

I have been using firefox beta versions mainly and before ver 22.0 pages displayed zoomed out as default with small text the resolution was that of my desktop at 1920X1080 it seems.After the update the text pages open zoomed in and dialog boxes bigger.Im very uncomfortable with this.Is there way to set all pages to open in a zoomed out format by default.

I have just got a new laptop running Windows 8, I do not use the start screen, I have downloaded Start Windows 8 and only use the desktop. I have downloaded Firefox and I am currently using vesion 20.0.1

I added MyWot and Adblock Plus and Downloader Helper.

Initially I was having a problem with the display of Cnet and the odd other site. I figured this was likely to be an issue with Adblock Plus, I disabled it on that site and it was fine. I then started losing the email functions in Yahoo mail, 'move', 'forward' etc. that run along the top of the inbox, and the drop down menu to log out woudn't show. I've since been getting problems with the display of other websites such as booking.com and now the Facebook log in page. By displaying incorrectly, I mean things appearing in line and in Times New Roman.

I have restarted with add ons disabled that didn't fix it, so I reset Firefox. This had the sites working. I reinstalled MyWot, restaretd, stillworked. Reinstalled Downloader Helper, restarted, still worked. I did not reinstall Adblock. I was using the Transport for London wesbite which was fine until I logged out and then that page appeared in Times New Roman too. The Facebook log in page is also broken again. Does anyone have any suggestions? I know my way around a computer to an extent but I'm not that techy. I've done the auto add information below, I don't know what most of it means (Avast plug in has been disabled through all this).

I have not been having these problems on my old XP laptop that I've still been using.

Desktop sync is broken and instructs to obtain "Your Recovery Key" from a working device. Only working device is Android Firefox. What is the magic incantation to get Firefox (v21 beta) on Android to reveal the needed sync Recovery Key?

2 Feb 2013 Concerns: Firefox 18.0.1 often freezes, at random times, since about 31 Jan 2013 I am using Mozilla Firefox 18.0.1, Windows Vista, PC, Desktop. My Mozilla Firefox freezes since about 31 Jan 2013 at random times quite often, when I do see TV or videos, also with YouTube videos. It freezes especially when I do start TV or a Video, sometimes also it freezes when the video is running for some time. I do use Firefox mostly only for TV and videos, so else I do not see. Some days earlier (26 January 2013), I had installed the upgrade of the new Norton Internet Security 2013. The two Norton add-ons on for Firefox, I have both deactivated. I can get out of the freezing, when I do click to end the Internet connection. After I have waited for about 5 seconds, the Mozilla Firefox browser can be moved again with the cursor. After I click to close the Firefox, and wait for about 5 seconds, the freezing also does end. I did do two Windows restores, one to 1 week ago and the next to 2 weeks ago. After the restore, when I started Mozilla Firefox, it was at first Firefox 17. But to my very bad luck, Firefox started immediately to update to Firefox 18.0.1 I had seen this updating on Help – About Firefox. There were good times, when people could choose themselves which version of Firefox they wanted. After the restore, I had also downloaded the latest Adobe Flashplayer version (about version 11.5), but the freezes have remained the same. Is there a possility to prevent the automatic update of Firefox? So that I could choose which version of Firefox, I do want. When there is a serious bug in Firefox, I could nevertheless use Firefox instead of changing to the Internet Explorer. I know I myself am responsible to prevent hackers from entering my computer. I have read that 80% of users in Germany do not have any Internet Security against hackers at all. My Internet Explorer until now does not freeze.

This was happening in the beta so i uninstalled and installed V21 and i still get a blank page when following links from google+ This does not happen when i use chrome or the built in browser. Am a real chrome fan but after trying firefox again would like to convert but this problem is a bit of a deal breaker.

While viewing my progress during a Microsoft Flight Sim session on Google Maps my position changes periodically using IE and Chrome but not on Firefox. How can I change this?