Diễn đàn hỗ trợ Firefox

Firefox won't play any video, on any website at all. I get different error messages on different sites, such as: The video playback was aborted due to a corruption problem or because the video used features your browser did not support OR Sorry, we're having trouble with playing this video. I've tried following some of the advice in the forums here, so I cleared the cache and the cookies, I ensured DRM content is enabled, and I unchecked the 'Use hardware acceleration when possible' option under preferences. None of this has made any difference. I also restarted firefox and installed an adobe flash player add on. Still no success. Any advice?

I have a new computer and am having trouble completing synchronizing the bookmarks from my other devices. I have made all the entries required, I am signed in other devices but the bookmarks are not coming through

Hello,

I'm trying to update Firefox on a relative's Windows 10 computer, but none of the installed browsers can reach the Mozilla main pages. We're stuck on version 72.0.2

Other webpages load fine. The only way I've gotten mozilla.org to load is by using a web proxy, but then the error appears when I try to download the latest version of firefox (it's always "download was interrupted" then). Going down the recommendations on this help page https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites , I verified that windows firewall allows Firefox. Then I checked the system time and the wireless connection. Flushing the DNS cache was similarly fruitless. Other computers using the same internet provider in the same house don't have this problem, so I don't think the ISP is at fault. I even went looking for the DNS number of the website and tried inputting that into my address bar. Still no luck. I made an HTTP log file of the error through about:networking, as described here https://developer.mozilla.org/en-US/docs/Mozilla/Debugging/HTTP_logging, and will attach it. I really hope you can help me troubleshoot this; it's been plaguing my relative for an excruciatingly long time.

... hm. Your attachments browser window doesn't see .moz_log files, so I've uploaded them to this ge.tt address: http://ge.tt/1ocAom83 .

Regards, Silvia

At first I was getting the something not wrong but don't fret we'll give it another shot message so I looked online and added Twitter to a block list and cleared all my cookies. This got rid of that message and I was able to get to the login page but when I go to login it still won't let me. I know the password is right (it also doesn't say anything like incorrect username/password). Someone in another forum had mentioned going into configs and flicking something from true to false or vice versa and that also didn't work. Most places I look just say the same old thing about cookies. It works perfectly fine on the mobile app and Chrome still but I prefer Firefox. I'm out of ideas.

Hi, I experimented for maybe 30 mins trying to get rid of a white border at the top of the browser but were unsuccessful and the others mentioning border problems seems to suffer more from a white thick line surrounding all sides...

Basically, I got a new computer and with it the latest firefox update. I never noticed how prominent the top border of the browser is, especially in dark mode and I'm wondering if there's a way to get rid of it and move the minimize/close browser buttons down to the tab section of the browser instead? And if that doesn't work, is there a way to darken the top border to the same black as the rest of the browser?

Kind regards Thomas

Hi there!

I have been having trouble with Firefox continuing to autoplay videos even with preferences set to "Block Audio and Video."

If I go to twitter.com or elsewhere Firefox will show that auto play is disabled, but videos will autoplay with no audio. I would just like to get this feature working as autoplaying videos are incredibly annoying!

Thanks for any help!

Firefox 72.0.1

Hi I attached this to an already solved question and I'm afraid I won't get a response. After update to 72.0.1 Tabs merged with Bookmarks Toolbar. The solved solution of new text for the userChrome.css file doesn't work. The userChrome.css text jdevlin supplied does not work on my Firefox. I had to create a new chrome folder as this update seems to have deleted it. I pasted the text into the userChrome.css but there was no change. What am I doing wrong?

Really need help on this, Firefox is practically unusable like this.

Thanks!

I can access my router setup page which is "192.168.0.1" or "tplinklogin.net" via other browsers without any problem. But with Firefox I can't access them anyway! But my internet is working fine and other websites are working fine too in firefox. Follow the screenshot please!!

Any kind of help would be appreciated! Thanks in advance!!

When using the "Checkout with PayPal" button on websites the PayPal popup window appears however it's impossible to progress to the checkout.

When OneTouch is activated, the text 'Securely logging you in...' appears overlayed with the spinning wheel in the popup window. This continues indefinitely.

When this is not activated the window doesn't progress further after entering the email as prompted by the window and pressing Next.

It's possible to login to PayPal in a separate tab however that doesn't influence the popup behaviour.

Looking at the console in the popup there are a few 'Unable to find window by ref window.js:148:14' errors.

In the 'host' window where the popup was called from the console displays the 'Failed to execute ‘postMessage’ on ‘DOMWindow’: The target origin provided (‘https://www.paypal.com’) does not match the recipient window’s origin (‘https://www.paypal.com’).' error.

I believe this could be a recent issue because I was able to make several payments last month with all settings the same. I have a separate user.js file that I keep my settings in (I can send it over if required). These settings have not been changed since the file has been created.

The following actions have been tried and didn't improve the situation:

- refreshing the current profile

- disabling all addins

- adding paypal.com into exclusions for 'Block pop-up windows' and Enhanced Tracking Protection

- cleaning History and cookies

I then launched Firefox with a separate 'clean' profile and was able to make the payment successfully. Sure enough, importing my user.js file broke PayPal. I went through the settings commenting them out by groups.

The following setting was causing the issue:

user_pref("privacy.firstparty.isolate", true);

Setting it to 'false' made the PayPal popup window work correctly again.

Thought that this would be helpful for anyone experiencing similar issues. Cheers.

Firefox does not appear in volume mixer in Windows 10. No sound is audible in Firefox. The same Web sites work well and produce audio in other browsers. Everything's OK with PC audio system.

I book mark a page....bookmarks open in default to either 'NEW FOLDER' or MOBILE ...I then change path to 'OTHER BOOKMARKS ' where all my bookmarks are. bookmarks then change by itself and goes to 'new folder' I then try and change the name but all i get is a NEW FOLDER Look at the snap shot guys Help please...my bookmarks are in a mess

When I try to attach a file to an email send in Gmail, nothing happens. The upload bar shows no progress and the email sits in the draft folder. The size of the file has no bearing on the problem. I've tried running in Safe Mode and even did a clean reinstall but it didn't help. The problem does not occur with the same accounts in Chrome or Opera; only in Firefox. I've tried everything recommended here, but nothing helped.

I am using Windows 7 Home and Firefox 72.0.1. When I try to update Firefox to a later version, it stops working on my computer, and plays dead. Is there a way to fix this frustrating problem? Your assistance will be much appreciated.

https://support.mozilla.org/en-US/questions/1253828 does not seem to work because the caret (») is not visible in Firefox 72.0.2 (64-bit) that is on my machine. This is most annoying. Firefox and T'Bird are the most difficult software to migrate to new computers.

I need the export as a CVS. The other approaches either don't allow copy and paste or they are JSON and I have no clue how rto use that.

The other angle: logins.json (passwords) and key4.db (58+) for Passwords saved in the Password Manager I don't see a way to get that into a spreadsheet.

It is particularly annoying because there is an import function but no export function. I have over 300 web site user names and passwords. Hours and hours of work to just copy one at a time.

Hi out there-

I would greatly  appreciate advice about how I can fix this problem with restoring my  Google home page. I have no idea how I lost it since I made no changes to it. It was simply there last night and gone this morning. I am a writer and I make a living from the Internet so time lost is money  lost. 

Thanks in advance for any help you can give me.

Befuddled in PA,

Marjorie

I've tried for 3 hours now simply to migrate my win7 profile to win10. Using the mozilla guide i get to a point where i open firefox and all is great. Bookmarks etc all successfully show. But then if i close fiefox and open it again, in the top left-hand corner in red i just get

Please tell me what i'm doing wrong!

as stated above, in attempting to watch a YouTube video sent in e-mail from a friend, I misunderstood the message I got from Firefox and clicked "ok, I got it" instead of "disable" and Firefox complete removed the sound from my computer so that now my volume control little icon has completely disappeared! how can I restore sound to my computer? I did not want this outcome!!

CTRL + W is the keyboard shortcut to close the active tab. This works fine if the tab isn't pinned, but if I press CTRL + W on a pinned tab, it just cycles to the next tab. This isn't ideal. The shortcut should close the tab regardless of whether it is pinned (as it does in other browsers). Anyone know why Firefox does this / is it intentional behaviour?

I use a MacBook Pro with MacOS 10.11 and the latest version of FireFox (72.0.2) and I'm unable to figure out how to bring up the Context menu. With previous versions of FireFox. I could hold down the Control key and click a tab and that would bring up the Context menu. But with the latest versions of FireFox, that option is no longer available.

I suppose if I bought a two-button mouse, I could bring up the Context menu with the right button, but you should be able to bring up the Context menu with the trackpad that come with Apple's MacBook Pro.

So how do you bring up the Context menu on an Apple MacBook Pro?

Thank you so much.