Firefox 技術支援討論區

This morning I noticed that my Firefox history has lost everything before April 2018. Fortunately I have another computer in sync with the first computer, and I was able to transfer the file places.squlite and recover my history. But why did it happen? And it's not the first time. Last year I lost from 2015 to 2017 or so. How can I prevent this from happening again?

I noticed this first when I had to force Google to go into dark mode even though firefox was already in dark mode.

I have searched through some issue reports and have seen a lot of people mentioning that their system theme is not being detected properly. This is not that issue. I can set the firefox "Website appearance" to dark or automatic at which point the UI of firefox itself does do into dark mode so no issues there. However if I go to a website that tries to query 'prefers-color-scheme' and set its theme accordingly it always returns 'light'. This is the case even if I set the 'layout.css.prefers-color-scheme.content-override' to 0 in about:config.

I used this website to test: https://septatrix.github.io/prefers-color-scheme-test/

The issue persists when opening a website in a private window.

Let me know if I need to provide additional information.

-Felix

After using the browser and closing it, Firefox continues to run in the background and hangs in the task manager, despite the fact that the browser is not running. We have to manually terminate processes. Strange behavior!

In about:config I have set "geo.enabled" to false. -> www.google.com still displays the content in my language, darn.

I went went back to about:config and marked "only show modified preferences" -> to my surprise not only "geo.enabled 1" was displayed but also "permissions.default.geo 2" (though I never touched that one - so I thought they must be linked somehow)

I was curious and reverted "permissions.default.geo" back to default -> now it is set to "0" -> but "geo.enable" is still on "false" (so I am not sure anymore if they are really linked together - which doesnt make sense to me)

Now I don't know if I should leave "permissions.default.geo" on "2" how I found it, or on "0" which is the default. That's why I come here to ask:

==> What are the three states of "permissions.default.geo [0/1/2]" doing and how is it interacting with "geo.enable"?

When I open "Extensions" (about:addons) by clicking the Extensions icon, I want it to start on my own extensions, not Recommendations. How can I make "Extensions" open to the actual Extensions tab? Or can I remove the "Recommendations" tab entirely?

I already saw [to remove 'Recommendations' tab in about:addons]. But about:config

 extensions.htmlaboutaddons.recommendations.enabled = false

only removes recommendations from the Extensions tab. And adding

 extensions.getAddons.showPane = false

does not work, the Recommendations tab is still there.

Hi. I was suddenly having unexpected problems to log in in a site (https://www.lanacion.com.ar/). So I updated FF but the problem persists. Then, I uninstalled FF, downloaded it again from the repository and installed again, but the problem persists. Then, I downloaded directly rom the Mozilla site, expand it in the desktop and double click the program icon. The program opened and I was able to log into the site I was trying to. Interesting enough, the browser opens a lot faster than when installed. My question is: everywhere on the web the response is "you have to install the program" or "the program is already installed in your distro", which is true in my case, but one day stopped to work properly. BUT I'm not installing it, and it works apparently well... ¿how can it be? Thanks in advance for your reply. -Enrique.

It works on librewolf and brave, and im running on fedora 37 (using the flatpak package) i have tried every fix including but not limited to: reinstalling, troubleshoot mode, making a new profile and clearing cache. also the openh264 plugin always says preparing to install or smth but never does, thought id mention it in case its important.

When I try to log into my website - https://huppbrian.us/tsc-admin - with Firefox Developer 111.0b8 (64-bit), get the following error first time every time... Error: Cookies are blocked or not supported by your browser. You must enable cookies to use WordPress. If I try again without making any changes, I'm able to log in fine. I've tried playing with the protections settings, but haven't found the magic pill to fix this yet.

For some reason I can't access the Spotify website (spotify.com or https://open.spotify.com/). I get this error message:

Page not found - We can’t seem to find the page you are looking for. Any ideas? This is infuriating. I'm on a Mac running Ventura and the newest version of Firefox. Thanks.

There used to be an icon just to the right of the star (for creating a new bookmark) on the address bar that when clicked gave a drop-down bookmark menu. For some reason it disappeared and I cannot seem to get it back. All I have been able to do is go to settings => bookmarks to get a list of bookmarks, which, however, doesn't have the bookmarks organized into the sub-categories I once had. How can I get that icon back on the address bar? I don't want to add on a bookmark bar or tool bar.

I did a new install of Firefox on a Windows 11 Pro laptop. When I enter a password to a site, blue tear drops appear around the password. I've followed the tips to turn off carets in about:fig, but the drops persist. This issue only appears in Firefox, not Edge, Chrome, etc.

Any help in turning off this annoying feature is appreciated!

Everything that has an active state seems to have suddenly gained huge thick borders, usually grey or black. This applies to UI and page elements. I have no idea what happened, I'm guessing an update changed 'something', but how do I nondestructively fix it?

All webpages seem affected.

(reddish bars in second screenshot are my removing some URLs, but everything else is my UI as seen)

Thanks greatly for any insights...

The web page, for my bank, won`t open. I have been using their web page, for a number of years. When I go to the web page, and try to login, all I get is a screen, with a circle, that keep circling, as if it were buffering, and never gets to the login page. Microsoft Edge, and Google Chrome seem to work, but not Firefox. My bank is Security Bank Of Kansas City. https://secure.securitybankkc.com/login

After FTP upload, jpg images are displayed rotated in FireFox-Browser (111.0.1 - 32-Bit). In IE looks OK. The website is built with dreamweaver 8.0. What can I do?

'bold textpr end of file error, pages will not load have to constantly press retry. mostly in email and home page. I have reloaded deleted and reloaded still the same things '

How do I add the icon for an add-on which is not shown when I click on "customize toolbar"? When I click customize toolbar the result does not show any of the icons for add-ons/extensions.

Hello, I'm having an issue with my overflow menu. When opening the customization screen for the toolbar, I can't seem to drag certain toolbar elements into it? The buttons on the customize screen itself work correctly, and some of the elements present on the toolbar will change between visible and overflow just fine, but others I am completely blocked from moving. Please assist, as this is seriously impacting workflow.

I am lost. The articles in Mozilla Support explaining how to backup and migrate my current account , after reading them, just gave me a headache. Can someone explain (in plain english) please, how I can save my passwords, bookmarks and cookies that Firefox has associated with my 8 year old Win 10 Pro desktop so I can transfer that data to a new Win 11 Pro desktop. Any and all suggestions will greatly be appreciated. Firefox and I have been running together since 2004! Thank you, The Old Guy