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My desktop is running Windows 8, which recently crashed. Since then, every time I start up, Firefox 17.1 (which is in the startuo folder) does not load, but brings up an error window saying (Couldn't load XPCOM). Dismissing the window then allows me to start Firefox myself. I have uninstalled Firefox (but not the personal stuff), downloaded a new copy of Firefox 17.1 and re-installed.... same thing happens.

Just to clarify ..... this only happens once, following the initial boot up of the desktop. I dismiss the error window and all is well after that.

Any bright ideas please?

What is XPCOM referring to? A missing dll file? can I find this file elsewhere and move it to the correct location?

Many regards.

As of late, my Firefox browser has been freezing my entire computer. It keeps saying that it is "not responding", my mouse turns into that blue circular loading screen, I can't exit anything, I can't even open task manager, I have to take the battery out just for my computer to turn off.

I scanned everything with Norton; didn't detect anything. I even did the Norton Power Eraser, still nothing. I set Firefox to run the program as an administrator and I thought it was fixed but it wasn't.

I even update my plug-ins and for some reason, your website keeps telling me I need to update the same ones, so I can't even rely on that.

I noticed that it does happen when I'm on a Youtube page. Like when I've paused a video.

It opens fast, it browses fast, it goes to certain websites fast. It's this annoyance that has really bothered me and has considered me switching to Google Chrome.

If you don't want me to, then tell me how to fix this issue.

Running auto updated Firefox 17.0.1 on Windows 7. I used to be able to stream Netflix just fine until late in the evening, 11/30/2012. I tried to stream a movie and Netflix showed a window saying it couldn't due to a problem using Silverlight, code 2103. Netflix suggested I remove and reload Silverlight. I did, twice. I also updated Firefox yesterday, just in case. Still, no joy. I can stream Netflix just fine with Internet Explorer. What gives?

Not really a question, more of a plea...

Firefox 18.0 crawls on my machine. Not the browsing as such; that's only a little slower than 17.0.1 (still noticeable). I'm talking about opening and traversing menus and entering text in text fields on sites. I had to go back to 17.0.1 as it was just too annoying. This is on Linux Mint Debian Edition (Debian Testing), using the nl localized Firefox downloaded from the Mozilla site. Switching off extensions and/or using a new profile didn't help. If this doesn't get any better in following versions, I'll have to look for another browser when 17.0.1 becomes too old. Please don't make me do that. I've just tried Chrome and quite frankly, it's a bit of a joke...

i reinstalled firefox to my desktop the previous one used to show my homepage google when i opened a new tab in my home page .but it doesnot open my homepage google now it is blank with some rectangular blocks

I am running the latest version of Firefox (17.0.1)

I have a number of add-ons all of which are disabled and which I would like to remove. Unfortunately there is no remove button.

I have read the FAQs and community help which tells me that if there is no remove button then the add-ons are there through being added globally by other software. However on of the add-ons that I want to remove is Google Toolbar for Firefox - how could that have been added by another application?

Any suggestions gratefull received.

I have Firefox set to delete cookies when closed. After I close Firefox, I usually run CC Cleaner. In the Analysis, CC Cleaner shows 307 cookies using a total of 0 space.

In XP, I went to Options, Privacy, and Show Cookies. There are probably 307 shown. When I click to Remove All Cookies nothing happens. When I highlight one cookie and click to Remove, nothing happens. When I open the particular cookie folder and see the cookie, highlight it and click Remove, that cookie seems to disappear for an instant, but when I click on the next one, the first one returns.

I want ALL evidences of all these cookies OFF my computer.

How do I accomplish that?

Almost at every page I open appears following notification 'Error: Syntax error' from JavaScript application. Even on this page where I fill the form. I have to click 'OK' several times to make it disappear.

TODAY A "SEARCH HERE" TAB APPEARED ON MY HOME PAGE. I CANNOT FIND A "PROGRAM" TO UNINSTALL IT. I HAVE REBOOTED, RESTORED TO A PREVIOUS POINT AND IT IS STILL THERE. HOW DO I DELETE THIS TAB.

unfortunately I cannot paste a screen capture so I have to describe it: When I launch Firefox /17.01) a pup-up opens in the bottom right of the screen. It cannot be closed by its own [X] icon. Title: "Browser settings change" An unknown change was detected on your browser's search settings. Options: ° keep my current serttings ° I am aware of rthis change and approve it There is a [Yes] button. No matter what I do, this box does not go away with normal user gestures. It remains open when I close the main window, and I cannot open a new Firefox window as long as it's there. I can close the pop-up from the taskbar only (or from task manager of course).

my name: Kay Richards, web developer website: http://www.benefitsinc.com/beneco_webinars.html

contains the following code in html file:

<video controls poster="http://www.benefitsinc.com/images/JeffPoster1.jpg" width="640" height="360">
	<source src="http://www.benefitsinc.com/media/11_14_12_Jeff_ACA_Intro.mp4" type="video/mp4" />
    <source src="http://www.benefitsinc.com/media/11_14_12_Jeff_ACA_Intro.ogg" type="video/ogv" />
    <source src="http://www.benefitsinc.com/media/11_14_12_Jeff_ACA_Intro.webm" type="video/webm" />
    <object type="application/x-shockwave-flash" data="http://player.longtailvideo.com/player.swf" width="640" height="360">
		<param name="movie" value="http://player.longtailvideo.com/player.swf" />
		<param name="allowFullScreen" value="true" />
		<param name="wmode" value="transparent" />
		<param name="flashVars" value="controlbar=over&amp;image=http%3A%2F%2Fwww.benefitsinc.com%2Fimages%2FJeffPoster1.jpg&amp;file=http%3A%2F%2Fwww.benefitsinc.com%2Fmedia%2F11_14_12_Jeff_ACA_Intro.mp4" />
		<img alt="Jeff Schultz" src="http://www.benefitsinc.com/images/JeffPoster1.jpg" width="640" height="360" title="No video playback capabilities, please download the video below" />
	</object>
</video>

windows xp, firefox 17 (have also tried windows 7) inmotionhosting apache server have added to .htaccess the following:

AddType video/mp4 mp4 m4v
AddType audio/mp4 m4a
AddType video/ogg ogv
AddType audio/ogg ogg oga
AddType video/webm webm

video works in all browsers, on ipad and iphone EXCEPT firefox when I comment out the line for webm it skips ogv file and says I need to download the video

at this point am totally baffled.

When I go to my Facebook page, part of it has a message that reads "ads by browse to save" maybe a hundred times on the page. If I click on a picture or something, "ads by browse to save" will keep popping up, as long as the window is open, making it nearly impossible to comment/read other comments. I clicked the link and it brought me to browsetosave.com which gives instructions on how to uninstall it from firefox.

The PROBLEM is that "Browse to save" doesn't show up on my list of extensions/add-ons/plug-ins. This happened to me before with a different "ad" website and I had to uninstall/reinstall firefox. I was hoping to not have to do that again, especially since I don't know what's causing it. I do have screenshots (although I don't see where to add them).

Any help would be appreciated!

I have two monitors one acer x203h and one dell 17 inch monitor. The acer uses firefox and the dell uses chrome. Let me repeat my cleartype is ON. Firefox does render the page correctly most of the time and then just turns pixelated, fuzzy, hard to read, etc. Moving the page up and down sometimes helps sometimes not. I move firefox to the dell monitor and it pixelates less but still does. The chrome doesnt pixelate on either monitor but it does look a bit fuzzy. I do have IE but only use it for windows updates. The larger the font the less chance of the font pixelating.

Current font is Arial size 18. Proportional is San Serif with the rest of the choices being Arial. Allow pages to choose their own pages is checked off.

Not sure when this started, but videos now will only play for about 10 - 12 seconds at a time. No crashes, no errors, just hangs and it's only the video. I can jump to another point in the video, and it will stop after 10-12 seconds from there. I'm on the latest Firefox with the latest version of Flash. I've tried uninstalling Flash using the Adobe uninstaller. I've reinstalled with 10.3, 11.2, and the latest again with no luck. I've turned off hardware acceleration, no luck. I've manually selected the resolution of the video, no luck. I've started in safe mode and enabled only the Flash plugin, no luck. Anyway have any ideas?

I have a blinking cursor/mouse pointer when I am using Firefox for the past two or three days. The blinking cursor only happens when I surf; all other programs do not have this problem. I have the latest version of Firefox installed (17.0.1). Using the F7 key, I have turned caret browsing on and off with no change. I have tried to restart and shutdown my PC, along with restarting Firefox. I do have the Ghostery extension enabled, but I have been using Ghostery for months with no problem like this. My PC summary is as follows: OS Microsoft Windows 7 Home Premium 64-bit SP1 CPU Intel Core i5 650 @ 3.20GHz 78 °C Clarkdale 32nm Technology RAM 8.00 GB Dual-Channel DDR3 @ 664MHz (9-9-9-24) Motherboard Dell Inc. 0C2KJT (CPU 1) Graphics SAMSUNG (1920x1080@60Hz) DELL IN2020M (1600x900@60Hz) ATI Radeon HD 5450 (Dell) 76 °C Hard Drives 932GB Western Digital WDC WD1001FAES-75W7A0 ATA Device (SATA) 45 °C Optical Drives PLDS DVD+-RW DH-16ABS ATA Device Audio AMD High Definition Audio Device

Hi, My Firefox plug-in check is telling me that there is an update for Java, but when I visit the link it's still taking me to the old update (the Java 7 update 9). Also, according to the Java test page, Java 7u9 is still showing that it's the latest...it says I have the recommended version.

Is there an newer update somewhere?

Thanks.