Firefox Support Forum

for the past few weeks Firefox has been really hard to Copy & Paste text from one page to another, then editing the text is impossible - I can paste lines of text but only one goes in the box - then when I try to edit or manipulate the text it just screws up :/

It does not matter if I use context menus or Keyboard commands to copy & paste (CTRL C& V)

I've been using Firefox for about 10 years and NEVER had this issue - I have tried the stuff in ABOUT:CONFIG CONTEXT and even in SAFE MODE the issue exists :/

I tried to screen record the fault but that's pointless because you cant see that my key presses are being totally ignored in the text box - all you would hear is me swearing the computer

Anyone else having this issue?

WTH is happening

I don't want to switch browsers as all my devices sync but this is getting really bad and makes working on my business blog virtually impossible.

Been in I.T. for 28 years and never seen anything like this before!

Videos on Twitter don't play, "The message This browser does not support video playback." appears on the center of a screenshot of the video. Twitter Videos play normally on Chrome. YouTube videos play normally on Firefox.

I have the latest version of Firefox and all the plugins are up to date (Java, Flash Player etc). I have experimented changing Hardware Acceleration Where Available box, the media.windows-media-foundation.enabled attribute, clearing the caches, opening in safe mode, nothing makes the videos play.

Is there anyone who has had the same problem and managed to solve it. Thank you.

The plug-ins checker shows Reader 15.008.20082 to be out-of-date, but Adobe's plug-in checker shows that I am up-to-date. I have erased the pluginreg.dat file and it did not solve the problem. Any other suggestions or is this the plug-ins checker not taking my Firefox Mac version into account? Is Windows still the only Reader version that has actually updated?

I go to https://www.google.com and click Sign In, that takes me to https://accounts.google.com/CookieMismatch and the message displays:

We've detected a problem with your cookie settings. Enable cookies Make sure your cookies are enabled. To enable cookies, follow these browser-specific instructions. Clear cache and cookies If you have cookies enabled but are still having trouble, clear your browser's cache and cookies. Adjust your privacy settings If clearing your cache and cookies doesn't resolve the problem, try adjusting your browser's privacy settings. If your settings are on high, manually add www.google.com to your list of allowed sites. Learn more

Now, cookies ARE enabled, I DID clear the cache, I DID delete all the Google-related cookies, and Firefox's Options pages have no setting for privacy level that I can find. Also this problem does NOT occur in IE, so it's not McAfee Antivirus that's at fault.

I'd be so grateful if you could help!

Hello,

I am trying to Browsing some site but my Browser Showing the Below Error:

[Forbidden

You don't have permission to access / on this server.

Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.]

Here is the Sites : http://www.webmd.com/ http://www.epenisbook.com/ http://www.health.com/

I am not only Facing this problem for this site. There are many sites showing this problem every day. I see this is only for me. My Friends can brows easily that sites.

So How I can Solve this Problem ?

On two different profiles, the Customize option simply isn't working. I see three different places on the GUI to click on Customize, and none works. Nothing happens when I click on them, beyond the letters "Customize" appearing at the top of a tab.

After appearing earlier this evening, the LastPass icon is also failing to appear on both profiles.

I love Firefox but will be forced to delete it and use Intenet Explorer (which I dislike) unless I can get of Yahoo. It has taken over my computer. Several times I have set my normally wanted home page, but Yahoo still continues to take over. I am at my wits' end. There is no use going through the mozilla search for the answer because it just tells me how many people have the same problem, and there is no way of finding the answer.

On a Windows 7 machine, I installed Firefox (40.0.3). When I try to open https://www.google.ch, I get the following error: sec_error_unknown_issuer. There is NO button "I understand the Risks" -- I cannot add an exception. Other sites, like youtube (using https) load without errors. I already deleted the cert8.db file, and the date and time of the machine are also correct.

Cannot play a single HD video on YouTube using FireFox using HTML5 and Flash. The video stutters and then drops frames and an insane rate while the audio keeps going. I used to be able to play 720p 60fps videos on Firefox but even those drop frames now. I don't understand why since YouTube works fine on Microsoft Edge but I would much rather continue using FIrefox than that so some help here would be greatly appreciated. My specs (laptop): Windows 10 Pro 64-bit AMD E-450 APU with Radeon HD 6320 Graphics 1.65 GHz 4.00 GB RAM Wired connection.

Thank you.

This home page comes up all the time and also keeps making unwanted adds pop up. I can't seem to get rid of it. What should I do? ( Esurf.biz)

I updated with the "Newest" Firefox (see their ad. below), now all my saved Bookmarks are gone, and one of my toolbars is gone with all my saved bookmarks and other data. I tried restoring everything back to a previous date, but everything is still gone. I am using 32 bit, Windows Home Premium on a Desktop computer. Can anyone help me get my old bookmarks back.

The newest Firefox is here Hey Firefox fans, the newest version is out! Here's what you get: More security Get the latest security updates, including download protection from potentially unwanted software.

Better performance Enjoy improved video playback, smoother animation and better scrolling.

The independent choice We've always designed Firefox to protect and respect your private information.

Make sure you set Firefox as your default choice. Here's how. Do you have the latest version? UPDATE NOW

When playing Farmville on Facebook and trying to collect something on the main Facebook page I have to reload over and over before it will finally connect and display. Sometimes reloading or more times.

Hello,

I am having some issues using any google related websites. Sometimes when I try to perform a search on google, or load a video on youtube, it simply wont load anything. At first I tought I had internet issues, but I dont not. As soon as Firefox wont load Youtube or perform a search on google, if I try this at Chrome I can do it with no problems. So the problem is in Firefox, since at Chrome and IE there are no issues at all.

I have all my plugins updated on Firefox. Anyone could help me regarding this issue?

First, repeating my original issue: I have a Mac, OS 10.6.8 (Snow Leopard). I can access my Hotmail "Contacts" page using Safari, and at one point it seemed I could with Firefox. Now, I can still get to my Hotmail account with Firefox, but not my "Contacts" page. When I try to, I get this message:

"This page is temporarily unavailable. We're sorry, there was a problem showing this page. We experienced some technical difficulties retrieving the content."

Although I had my OS restored a few days ago, this problem may have existed before that, but I was using Safari, so I may not have noticed it.

Please use layman's terms--I am not tech savvy.

The response from Mozilla was to clear my cache and cookies, but they clear automatically when I exit Firefox. Then there was advice to start in Safe Mode--that sounds more like for a PC then a Mac. I had this very problem last year when I could access my contacts through Safari, but not Internet Explorer on my PC at work. After a few months, IE suddenly connected to my Hotmail contacts, WITHOUT MY DOING ANYTHING. COULD IT BE THAT THERE IS SOME KIND OF DISCONNECT BETWEEN FIREFOX AND HOTMAIL, THAT HAPPENS AFTER GET INTO MY HOTMAIL ACCOUNT, THAT WON'T LET ME GO TO MY ADDRESS BOOK? CAN SOMEONE CHECK ON THIS, SO I DON'T SPIN MY WHEELS TRYING TO SOLVE A PROBLEM FROM MY END, THAT NEEDS TO BE SOLVED INTERNALLY THROUGH FIREFOX/MOZILLA?

Fan runs high & hot watching youtube videos. Have new macbook pro retina 15" mid 2015. 2.5 GHz intel core i7. Started happening after second to last Firefox update. Updated to most current thinking it would be fixed. It doesn't happen if I use Safari. Apple support senior lead tried to resolve issues. Sorry, I'm not very technical. Tried shift, control,option start. Tried option, command,R,P start. Tried logging on as a new user. Tried so many options, I can't remember them all. Uninstalled, reinstalled,and uninstalled again. ran disk repair(?). Followed Firefox troubleshoot all the way to the end. Started in Safe Mode...everything. She told me to contact Mozilla to see if you had any answers to my issues. I also had issues last week with Firefox crashing 3-4 times in a row while watching youtube. I sent reports to Firefox. I hope someone can help me. I prefer Firefox to Safari! Thank you!

I am running Windows 10, and have recently started experiencing trouble with Firefox. After trying a lot of other solutions from the support forums (including creating a new Firefox profile), I uninstalled and reinstalled Firefox from a fresh download. I experience the same trouble: very shortly after starting Firefox, I hear constant disk activity, and Firefox becomes unresponsive. My only choice at that point is to end the program using the red "X" (program close button). As soon as I do this the disk activity ends and the computer runs normally.

I cannot include troubleshooting information with this post because I can't keep Firefox running long enough.

The same performance issues happen with Firefox running in Safe mode. I had to resort to Microsoft Edge to post this question.

Any troubleshooting assistance would be greatly appreciated.

Thanks.