Diễn đàn hỗ trợ Firefox

I am a member of Nielsen Computer App. Why did Firefox quit allowing me to use/add this extension?? I guess if this is going to be a problem I will uninstall Firefox AGAIN and go with Chrome. I really like Firefox, but this is so upsetting that I cannot add the Nielsen Extension like before.

When I click on a bookmark, FF opens it in the current tab, overwriting the site I had open. I have to add a tab, then click on the bookmark to have it in a new tab. This is an annoying extra step. How to I change it? I already tried the open links in new tabs instead of windows. Makes no difference On or Off

Hi there! The New Tab page looks great with white text, but Firefox 140.0.4 thinks my wallpaper is white, so text should be dark. I can change the body class to "activity-stream darkWallpaper" using the inspector and it works fine, but how make this change permanently?

My toolbar is visible when I click on the 'Open a new tab' plus sign at the top. But if I go to a site, either from a search or from bookmarks, the toolbar disappears.

I just (yesterday) had to delete profile, delete bookmarks, delete Firefox, install Firefox, in order to get it where it would save bookmarks again. The toolbar, prior to that, did NOT disappear when I went to a new site.

Please help.

I opened up Firefox just now to find that my two profiles currently in use are completely inaccessible. I was faced with a "Create Profile" dialogue that launched me into a brand new profile with none of my settings, keybinds, cookies, extensions, anything. Despite this, I know for a fact that my old profiles are *still* there. As you can see my profile folders are right there, with all their data intact as far as I can tell from inspecting their contents, yet they are not accessible from the about:profiles.

Please help me. What is happening with the profile manager? How do I access those old profiles?

Is anyone else having problems with the latest version of Firefox not rendering Google Calender, Amazon.com and other websites?

I had 10 or so tabs open on my laptop. I rebooted my laptop because iMessages failed, and i forgot to make a note of which tabs were open. They didn't restore upon rebooting. Is there somewhere this history gets synced? Its not in the 'recently closed tabs' because some of the tabs had been open for a while. thoughts?

My bank website asks for pin and password codes but each character option displays the fancy Firefox symbol which I can;t delete. The passwords for the site have never been saved but I can't enter the correct password characters because I can't override the symbol. I'm having to access this bank account on Chrome unfortunately. Most frustrating because the website is not listed in "Saved passwords" so I can't edit it! Thanks Mike Bathgate

After the latest Firefox update, I could run YouTube without problems for several weeks. Now YouTube will not run. How do I fix this issue? I suspect it is due to an adblocker but not sure!!

Hi all! Happy Firefox user for over 20 years here. Recently I've had to switch to Chrome for one of my use cases, Google Cloud Monitoring dashboards. They're evidently JS- and data-heavy, and they're often unusably slow in Firefox. I often see delays of 10s or seconds when clicking any button or link, rendering data, or doing anything else. They also seem to get slower the longer their tab is open in the browser. They're way more usable in Chrome; maybe not perfect, but drastically better.

Any thoughts?

I've used about:performance to take a profile on https://profiler.firefox.com/, and uploaded it to share.firefox.dev , and I know it claims to sanitize personal info, but I'm still a bit leery of posting the link publicly. Happy to share it with a Mozilla employee if that would help.

I am using the Raindrop (raindrop.io) bookmark manager. It has been working fine on Firefox for years. However, with my recent update to Firefox 140, it is broken. Specifically, I can no longer use the highlighting function. It works fine on Chrome, but not on Firefox. I've seen several similar reports on Reddit's Firefox forum (r/firefox).

What to do? I don't want to have to switch to Chrome. Suggestions appreciated.

I've added pinned shortcuts to my homepage before, but am not able to do so now. I read the instructions, but am not seeing the three dot icon for the menu on my address bar. I have bookmarked the site and it is showing in bookmarks.

What am I doing wrong?