Support Forum

When I try to connect to the embedded web server in my network attached printer at https:\\192.168.0.3, I get the following error:

| Secure Connection Failed | | An error occurred during a connection to 192.168.0.3. | | You have received an invalid certificate. Please contact the server administrator or email | correspondent and give them the following information: | | Your certificate contains the same serial number as another certificate issued by the certificate | authority. Please get a new certificate containing a unique serial number. | | (Error code: sec_error_reused_issuer_and_serial) | | The page you are trying to view cannot be shown because the authenticity of the received data | could not be verified. | | Please contact the website owners to inform them of this problem. Alternatively, use the command | found in the help menu to report this broken site.

I have read many of the notes on this error, but have not been able to add a permanent exception to resolve the issue.

Ever since we accidentally installed (and uninstalled) IE10, links and buttons on Etsy don't work. They work using IE. I updated and reinstalled Firefox. Help.

Now Firefox isn't even working right. All sites I try to go to say they are not trusted. Even Firefox!

I tried to hear a conference call on a website. Got a message, needed windows media plug in. Checked my plug ins, no windows media. Read tutorial on firefox support. Clicked on download. Got a window that asked for repair or change. Tried repair, then change. Need better directions on how to finish download. Got message download successful, but after closing firefox and reopening, still no plug in for windows media in list of plug ins. Went to site and could not hear conference. Read support forum. Message about using about:config. Tried this, typed in about: config in start menu, but didn't see anything that looked like I could change to true like message said. solved by opening internet explorer and going to website and listening to conference call on windows media player. There was a message saying click here if you want to enable media player. Did so, heard conference. Tried using chrome. Got to hear conference yesterday. Today, there was same message about needing plug in when I tried to follow instructions to get plug in, it was as confusing and useless as firefox. The bottom line is I tried to do everything set forth in firefox's forum suggestions and can't get the windown media plug in to show up in my list of plug ins and can't hear conference calls on firefox. Chrome did say they were working on getting plug in available at chrome store. I agree with comments that I was able to go to web sites and hear calls before firefox made an update that removed my windows media plug in. The simple download fix, presumeably from windows, does not work, apparently because firefox can't find the fix. That is not the user's fault, and it looks like windows tried to provide a fix, and firefox won't recognize it. Bottom line, it is easier to use another browser, than try and get the windows media player plug in installed on firefox. What good is a browser, if you can't hear a call on the website that the browser takes you to? Please make it easy to install the windows media plug in on firefox. Thank you..

After I upgrade to Firefox 21, I also upgraded to Flash Player 11. Now when I start Firefox it hangs up before it opens any site. I can only close it using task manager. When I uninstall Flash Player, Firefox works fine. I tried installing an older version of Flash, and that didn't work either. Windows 7.

Within the last couple days, Firefox has had a lot of problems.

When I open it, the window hangs and freezes after a few seconds, if it opens at all. Other times, trying to open Firefox simply won't open the window, but will leave an extra process running in the background that I have to manually shut down via Task Manager.

I have made a fresh profile. I have restarted Firefox. I previously had hardware acceleration checked, and disabled it; still having the same problem. I have uninstalled and re-installed Firefox multiple times. I have run a scan of my system with Malwarebytes; nothing detected. It's not even generating a crash log. I have looked through the support forums, found people with problems similar to mine, but no solutions posted for them since sometime last month.

Firefox seems to run normally if do an install of version 21, which opens up the browser window. Everything works fine, until I close the browser and then re-open it.

I today had the problem that after trying to upgrade Java 7 U10 to Java 7 U11, that the Java Platform (TM) completely disappears from the Add-ons manager. I was also not able to use any websites anymore the require the Java add-on.

Tried everything ... tried to install the Java 7 U11 update three times, completely uninstalled all java versions and installed them again, also re-installed Firefox 18, but nothing solved the problem. It also had nothing to do that mozilla disabled the java these days because of a security risk, or because of things like NoScript that I run. It´s simply not been possible anymore to get the Java plugin running in Firefox. Also deleting the plugin.reg and rebuilding it doesnt help at all.

I have seen that there have been two threads in the forum before:

https://support.mozilla.org/en-US/questions/924704 with 339 people having this problem, but the thread was closed 3 months ago with no solution

https://support.mozilla.org/en-US/questions/861922 with 203 people having this problem, but the thread was closed 11 months ago, also with no solution

It´s still the same problem, but also an extensive search on google did not show any solution to this problem. So, this is still an open problem, and unfortunately the two previous forum posts have been closed.

However, I found out the solution to the problem, so i post it here so it may help other people, too:

The JavaPlugin is not registered in the registry. And even uninstalling and installing Java will not add it to the registry again.

Solution:

In HKEY_LOCAL_MACHINE/SOFTWARE/MozillaPlugins, a new branch with the name @java.com/JavaPlugin,version=10.11.2 needs to be created,

with the following 7 keys:

(Default) REG_SZ (value not set)

Description REG_SZ Oracle® Next Generation Java™ Plug-In

GeckoVersion REG_SZ 1.9

Path REG_SZ C:\Program Files\Java\jre7\bin\plugin2\npjp2.dll

ProductName REG_SZ Oracle® Java™ Plug-In

Vendor REG_SZ Oracle Corp.

Version REG_SZ 1.7.0_11

The entries are going to be different for each java version (this one is for Java 7 U11) and for your personal install path, but what you can do is to copy the registry keys from another machine that runs the same java version that you want to use (for example from your notebook or from a virtual machine) by exporting them from that machine, and importing them to the machine that has the problem.

It fixed the problem on my machine, java plug-in runs fine again.

I hope this is going to help some hundred people having the same problem, so I am glad to publish it in the forum. Not all users will be able to find a solution to this problem. It would be great if an admin could add a link to this post under the two previous posts that were closed, where no solutions has been posted, so people going there via google can find the solution in this thread.

My homepage is my.yahoo.com and is listed as the start page under Options > General. This address is my customized Yahoo page. When FF v. 21 (just updated yesterday) starts the generic version of My Yahoo starts with the URL http://my.yahoo.com/?_bc=1. So each time I start FF I have to manually log in to Yahoo to get my personalized start page. I check the box to remember me, but to no avail. I have cookies enabled.

Never had this problem until the update. Any ideas?

After upgrading to FF 21, search engines no longer appear in the bar on the top right of screen, so no searches are possible. I can navigate to my bookmarks and apparently also to links contained in emails.

If I right-click on the FF icon, and choose the "run as administrator " option, the search engines are there again. I tried deleting the parent.lock file from the profiles folder, as this solution had solved a problem I'd had recently with the previous version of FF (not being able to open FF, and getting the error message about another version of it running, which had to be closed first - but there was no other version running. In that case, too, before finding out about the solution, I was able to open FF by using the "run as administrator" option). However deleting the parent.lock file didn't solve this problem.

I'd be grateful for your help, especially if put in simple terms a not hugely computer-literate person like myself can understand!

This webpage https://support.mozilla.org/en-US/kb/thumbnails-on-new-tab-page-are-missing does not fix my problem. Anyone know how to get all your website "tabs" images to show on the new tab page?

Using Windows 7 and XP, up to date FF 20.

Thank!

am working for <a href=”http://www.examresultstoday.com/”>examresultstoday.com</a> and while i want to download some files or backup of cpanel then tend to use idm but what to do in order to be able to download my backup using it ?

When I have my dock set to the left-hand side of my screen, Firefox maximizes to all but a small sliver of space on the left hand side. Is there a way to change the default maximized window parameters (in about:config or something), or is there an add-on that will allow you to do it?

This just started happening; I'm running Firefox 21.0 with Adobe Flash Player 11 on Windows 7 Home Premium.

I'm not getting the audio on Pandora; it plays fine on other browsers like Chrome. Other sites like are fine. I made sure I had the latest flash player, cleared cache, checked for conflicting plugins...

Any ideas?

About a month ago I added AVG Tune Up (free???) which cleared registry errors and "optimized" my pc. everything was ok. On or around May 6 I had numerous crashes of Mozilla Firefox, it would just close the browser down, this happened for several days. Sometimes it closed within minutes and sometimes it would not shut down during the session. I did send the crash report to which Firefox support did reply with no definitive solution. It did reset firefox, I have the old settings folder on the desktop, and the crashes seemed to stop. Since the AVG Tune Up was the only thing that I had added I, instead of just removing it from the machine, did a rewind or go back to a date before it had been installed. That is when the horizontal split screen showed up, it happens in safari and IE ,though the Firefox browser is my default. I just can't figure which setting needs to be changed, can you help?

I just upgraded Firefox for windows to version 21.0 After upgrading, when I enter a subject to search in the search box (in the middle of the page) of the Mozilla Start page and press enter nothing happens. It doesn't bring in any search results. The only way to navigate using the browser is to enter the website name in the address box at the top of the page and press enter. I'm running the browser for Windows Vista - 32 bits. I tried re-installing firefox and I got the same result. I also tried re-booting after installation and it still behaves the same way.

Please help,

Thank you,

Hektor

I was able to disable Private Window options that appear in menus and buttons by locating the right controls in browser.xul and adding the disabled="true" attribute to each tag. I was also able to prevent about:privatebrowsing from being used for this purpose by doing something similar to aboutPrivateBrowsing.xhtml, but I still had the New Private Window task in my jump list. The only way I saw to eliminate that option was to completely disable the task list by setting browser.taskbar.lists.tasks.enabled to false. Then after finding and deleting the appropriate jumplist file from Windows' CustomDestinations folder, I now didn't have New Tab or New Window, either. These are a lot of hoops to jump through! We need a better way: give us an about:config option called browser.privatebrowsing.enabled with a default value of true, which when set to false would disable the entry point to the Private Browsing mode, even for the taskbar jumplist.

I have to everyother time re-send the email. Because nothing happens, when I send it, it appears, or it gets frozen up & just has the mouse rotating blue in color. I then have to wait 5 mins+ to resend the email. And then I see that it has sent 2 emails to the same address. It may work normal for 2 or 3 times in a row, then it does this for a few times with other emails... Its very inconsistent ! I don't have this happen with IE.

Also if I copy & paste a link from any website, only with Firefox does this happen. I do not see it highlighted. So whoever receives my email msg has to copy & paste it into the address bar, & hit enter, when they receive my email. When using Internet Explorer I do not have this going on. It is highlighted for me.. What's with this ? This is only an issue with Firefox, I don't have this with Chrome or Opera, or Internet Explorer, but prefer to use Firefox.

I would like to know how to remedy this.. thankyou, Cyrus

For several weeks I have been accessing Words with Friends through Facebook using Firefox. For the last two days, when I launch Words with Friends in Facebook using Firefox, a small window opens stating "Trouble Connecting to Facebook. It seems we're experiencing problems connecting to Facebook. Please refresh and try again." Refresh does not change the condition. If I access using Internet Explorer, I experience no problems.