Diễn đàn hỗ trợ Firefox

I am using Firefox as my default browser and today I find out that, as I was using Google ads to set up a campaign, and trying to see previews of my ads, Firefox was strongly lagging or sometimes I had to force it to close. Afterwards I used safari and everything was ok. It is useful to mention that I had dis-activated the ad blocker on Firefox. I use 136.0.2 edition and Mac 15.3.2.

Firefox 136.0.1, Linux 6.8.0-55, have set Okular as default pdf application, however Firefox will not open pdf file when downloaded nor will it open the file when selecting Open File from the Download Icon on the toolbar. Only was I can get to file is to select Show in Folder option and open from within Dolphin.

Hello, I am from Ukraine and I use a translator, sorry for that. I have poor physical and mental health. I have Windows XP and there is no possibility to buy a newer computer. Yesterday all my browser extensions were disabled. They are very important to me. I accept and understand all the risks. I beg you, please let me use these extensions. Please help...

I changed my language from Arabic and back, and now I see a little line attached to my cursor within all web pages that I visit, that I believe was added as a result of my language change to Arabic and then back. I have attached screenshots of what a normal cursor looks like vs what my cursor in firefox looks like now. I have not had this happen before today when I have switched between languages in the past. It looks normal within the Firefox address bar, but not within text boxes within web pages.

My current language settings are set to US English, but I keep the others as alternates to switch back and forth between.

I currently have Firefox to open at startup showing three different websites. When I open a new window, the same three sites are open. I would prefer all new windows to open with one new tab only. I don't much care whether that new tab displays some sort of blank page or home page or a website I have chosen or whatever.

I can't find a setting or an extension which allows this. Can anyone help?

Hi....all of a sudden my firefox browser is not working. My home page will load in. But if I try to search for something all I get is a blank white screen. Can anyone help me out. I thought if I uninstalled it and then reinstall that might fix the problem. But I cannot find a way to uninstall it. Would appreciate anyone's help...Regards, Richard

Hello Internet archive downloader extension for Firefox gets error

Just three days ago, it worked well 

Now it is getting error : Error unknown image format please contact the developer Please help and let me know how to resolve

Since my Yahoo Mail account on the Firefox home page stopped working 3/14/25, I have to get my mail through a gmail back door. How can I restore my Yahoo Mail (with all its content) to my Firefox home page?

I cannot load certain webpages including gmail and various others frequently used suddenly without any changes made on my end. It just doesnt finish loading the page but I can access all of the pages on any other web browser just not firefox anymore. I deleted the cache of cookies and that's about it as I am not tech savvy at all and have set up nothing personalized or special. Please help I have literally no recourse at all here.

Hi - we use firefox at our company and we would like to block access to the below buttons in the settings in firefox

Master Password AutoFill \ Save and Fill Addresses AutoFill \ Save and Fill Payment methods

I have tried doing this with OMA-URI with intune with the below ./Device/Vendor/MSFT/Policy/Config/Applications/Firefox/Distribution/Policies

This is the value I have set

{

 "policies": {
   "DisablePrimaryPassword": true
 }

}

However, the above is still not working - can you recommend a OMA-URI and string that would block access or grey out these buttons in Mozilla Firefox?

Just tomorrow all sites worked as expected. But today expected issue first on my teamcity server, the html was not loaded right and I switched to google chrome where all worked as expected. After I tried to access MyHeritage and the issue persist. In the console log I'm getting such error message

Content-Security-Policy: The page’s settings blocked an inline script (script-src-elem) from being executed because it violates the following directive: “script-src https://accounts.google.com/gsi/client https://www.datadoghq-browser-agent.com https://*.googleapis.com https://appleid.cdn-apple.com https://*.myheritage.com.ua https://www.myheritage.com.ua 'unsafe-eval' 'unsafe-inline' blob: data: 'self' https://*.myheritage.com https://*.mhcache.com https://tpc.googlesyndication.com https://*.doubleclick.net https://*.google.com https://*.googletagmanager.com https://connect.facebook.net https://bat.bing.com https://www.googleadservices.com https://*.google-analytics.com https://*.analytics.google.com https://analytics.google.com https://www.gstatic.com https://*.googleapis.com https://*.mk-sense.com https://code.jquery.com https://www.dwin1.com https://ad.zanox.com https://portal.allyable.com https://static.allyable.com 'nonce-bW96LWV4dGVuc2lvbjovL2ZlODQ1ZDdmLTg5YTAtNDU1YS05NGYwLTBiYTk0NDlkNmZiMy8='”

And such warning "Source map error: Error: request failed with status 401 Stack in the worker:networkRequest@resource://devtools/client/shared/source-map-loader/utils/network-request.js:43:9

Resource URL: https://cf.mhcache.com/Static/FP/Assets/bundles/JS/FamilyHomePage2018Bundled_v86cd694935def27834997425398ff01e.js Source Map URL: https://www.myheritage.com/FP/Assets/bundles/JS/sourcemaps/FamilyHomePage2018-0f574ef94a36e73c2757c789ce5a2177.js.map"

I'm little bit surprised, cos haven't changed anything on my laptop, just turn it on and found out an issue.

Also one moment, I can't go through website routing, always on the start page.