Firefox 技術支援討論區

How can I set the default language fir Firefox to English? Currently browsing results always come up in language of my geographic location, for example, Romanian while in Romania. Never had this problem before.

I was looking for an item that would be a couple of years back in my history, only to discover that my history now only goes back a year and 3 months… Exactly, as of today, I don't know if that's meaningful. Does anyone have any idea what might've happened, and how I can restore the rest of my history? Thank you!

I'm on a Mac using Mojave, with Firefox version 115.8.

So for some reason I have two versions of Firefox on my computer (Windows 64 bit), I am logged in and using one of them, and the other is just there. I could log in there but I don't want to, I just want to get rid of it. Links from Telegram open in it, creating a second Firefox window instead of opening in another tab in the already open Firefox window, which is very inconvenient. The windows list of programs which can be uninstalled only has one Firefox (I've tried deleting and reinstalling, it doesn't help). But when I try to choose a default browser I get 2 icons to choose from which look the same (see screenshot). What the heck? How do I manage this!

I have been using Firefox on my Mac for years with no problems. Recently, however, I have been having trouble running YouTube. I get to the correct page for the video I want but the video itself does not show up, just the background for the page. Any idea what I might have done to create this problem?

I am using Firefox v125.0.2. When I open a PDF in Firefox it takes a lot of time to load. But, when the same PDF opened in the Edge browser it loads normally and scrolling through PDF pages renders fast. I have shared the screenshot of a single-page pdf loading taking quite a long time.

Could someone please help me with this.

Every time I sign onto Firefox I get the attached message. I think that uninstalling Firefox and reinstalling "may" resolve the problem, but Firefox won't uninstall. I have tried four different ways and it won't uninstall. Can you help me an uninstall process?

No longer able to copy or paste text on Firefox with Windows 10. Copy and Paste are greyed out in the right click menu after selecting text. Using CTRL-C, V or P does nothing at all. Still works fine in other browsers. What has Firefox broken again this time?

I am trying to add custom search engines to Firefox. I have tried the steps given in the forum thread https://support.mozilla.org/en-US/questions/1212596.

However when I try to go and add the search engine as per the article given above I do not get the option. Please see the attached screen shot for more details. I do not want to add an extension or a plugin, but just manually have the option of adding search engines.

When I try to use needed tools on websites, Mozilla is blocking the page from opening. USPS will not allow me to track a package. When I enter the tracking number, the page just sits on white and the search just spins

Recently firefox stopped filling in my credit card information. 1. On a website asking for a credit card click on the credit card number box. 2. Choose the car from the popup. 3. Popup disappears but nothing is filled in on the website form. 4. Use Google Pay or PayPal to purchase.

This used to work.

Firefox version 125.0b9 (64-bit) Ubuntu 22.04 Firefox installed from the Mozilla PPA - ppa:mozillateam/firefox-next

Unlike Safari, Firefox doesn't autofill passwords or 2-factor codes. Please implement these features or tell me how to get them to work. MacOS 14.4.1 Thank you, Steve