Firefox Community Forum

I’m running into a limitation with Firefox profiles involving the original Profile Manager (about:profiles) and the new Profiles menu in the toolbar.

I previously created multiple profiles using the original Profile Manager (about:profiles), for example profiles A, B, and C. These profiles still function normally and can be launched through about:profiles, but they do not appear in the new Profiles menu in the toolbar.

I also tried using the “Copy this profile” option available from the new Profiles menu. This made it clear that the feature does not work with profiles created via about:profiles. For example, when I open profile A, I expected that I could use “Copy this profile” to copy profile A into an existing profile like profile B (which was also created using about:profiles). However, this is not possible. Profiles A, B, and C remain isolated from the new Profiles menu and cannot be accessed, copied, or managed through it.

At the moment, profiles created with the original Profile Manager (about:profiles) can only be accessed through that manager and cannot be transferred into the new Profiles menu in the toolbar.

Is there an official fix or a workaround that achieves the same result—specifically, transferring or integrating all existing profiles created with the original Profile Manager (about:profiles) into the new Profiles menu accessible from the Firefox toolbar?

1. The browser's built-in full page translation function has poor translation performance, even far lower than other browser functions.

2. The font modification in the settings cannot take effect on the translated page font. For example, when opening a literature page (Elsevier) and clicking on the built-in full page translation, the font does not change.

3. When the page becomes a fixed tab, the prompts before closing multiple tabs will become invalid, and clicking the close button will close all tabs without prompts.

It should be pointed out that the loading speed of this browser is very fast. I feel that using this browser fully utilizes the performance of my computer, rather than some browsers that use a new era CPU and GPU, but the loading speed is the same as more than a decade ago. In addition, this browser has highly personalized features that meet my needs. It would be even better if the above issues could be resolved.

Thanks a lot！

I have installed an animated theme for my home page a while back, but recently if I minimize firefox the memory usage increases until it freezes my pc completely. I know this issue has been reported as Bug 1828587 2 years ago and it is said that it is fixed, but here I am experiencing the same thing. I would appreciate any help since I am not that good at coding a css file. Here is my userContent.css code if maybe i set something up wrong:

@-moz-document url("about:newtab"), url("about:home"), url(about:privatebrowsing) {

   /* Sets background image and autoscale image to browser window. */
   body {
       background-image: url("wallpapers/wallpaper.avif") !important;
       background-size: cover !important;
       background-repeat: no-repeat !important;
       background-attachment: fixed !important;
       background-position-x: center !important;
       background-position-y: bottom !important;
   }

   @-moz-document url("about:newtab"), url("about:home") {
       .top-site-outer .title {
           color: white !important;
       }

       .logo-and-wordmark .wordmark {
           fill: white !important;
           color: #00aaff !important; /* fallback for text */
       }

       .context-menu-button.icon {
           fill: white !important; /* for SVG-based icons */
           color: white !important; /* for any text-based fallback */
           opacity: 1 !important; /* ensure visible even when normally dimmed */
       }
   }

The second part is to make some of the text on my homepage white so it is visible.

Hi I keep getting this error on Firefox. I did disable all my extensions prior to this image shown to see if it was an extension causing an issue to no avail. I also looked for an update for Firefox and saw it was up to date. I also attempted to refresh Firefox which was a successful refresh however the error persisted. After refreshing I fully uninstalled Firefox and then reinstalled however the issue persists.

This error is shown however if I refresh the page sometimes the page freezes as if it lost connection and sometimes it reloads as per normal with the video playable.

I have enabled the option to open the previous windows and tabs. I had one window that I always closed last as it had a lot of groups that are important for my work, so it used to open every time I started Firefox. Sometimes, even if I closed the window by mistake without closing other windows, I was able to get it back by pressing ctrl+shift+n.

But yesterday, I might have closed it by mistake and when I pressed ctrl+shift+n , it didn't come back. I wasn't able to access my window and now it's all gone. I don't see anything in recently closed windows in history.

I need those tabs back as they are very important for my work. they were a lot of tabs. I had many groups but now all are gone. I tried by using the previous.jsonlz4 in the sessionstore-backup by renaming it in the default-release profile as sesstionstore.jsonlz4 but still wasn't able to access my window.

I didn't clear my history as the tabs opened in the window still show up in the history.

Kindly help as soon as possible

Dlaczego zawsze gdy chcę przetłumaczyć stronę pokazują mi się -tłumaczenie z język polski na język perski? Zawsze muszę wprowadzać, że chcę przetłumaczyć z język angielski na polski na przykład. Nie wiem jak mogę to zmienić by móc szybciej przetłumaczyć konkretną stronę? Skąd zawsze pokazuje się ten język perski. Chcę by zawsze wskazywało mi,że chcę przetłumaczyć np z język angielski na polski i nie potzebuję ustawiać, by wszystkie strony tłumaczyły się na język polski. Może ktoś wie jak usunąć tą podpowiedź tłumaczenia z język polski na język polski i ustawić inną podpowiedź? Dziękuję wraz z pozdrowieniami.

Hi. I've downloaded dictionaries and languages, the check spelling option is enabled in the browser settings. However, browser doesn't want to do it automatically. I have to manually enable it with RMB context menu (and re-select languages) for each website individually. Moreover, when the page refreshes, spell checking turning itself off again in RMB menu (but stays enabled in browser options).

  Is this really how it's supposed to work?

Can I permanently turn off InformationUpdate available' which appears each time I open Firefox. I must click Dismiss to close it. The problem is that after each update, many services to which I log every day, state that I am logging from a new device and I must complete a time consuming procedure of adding a new device in many places. And I don’t need most of the updates.

Since one of your updates, all of my photo files now have your logo on them and I can see any of the thousands of photos I have What the hell did you put in your update? JUST STOP SENDING UPDATES EVERY DAMN TIME I TURN AROUND.

The weather widget is set the country I am from, however I would like to actually use a different location for the weather. Is it possible to do? I tried to type in the city I want it to be set to but it only shows cities from my country.

I have been using Easy Screenshot for years. Today I tried taking a screenshot and it opened a huge copy of the rectangular image I wanted to save in a new tab. Then there was no visible way to save the image. I used to get the option to save the image file in the same tab as the image I wanted to save. Took a screenshot and saved in Paint to show the contents of the Firefox window that image is huge and should have been 4 inches wide at most. Also the lack of how to save the image.

I'm wondering if this a because of the latest update. Firefox 147.0.1 X64 desktop WIN10 22h2 with ESU

When I tried reporting the problem on the add-on page the website it tried to connect to was not working so asking here for help.

https://mozilla.com.cn/addon/325-easyscreenshot/

How can I remove the moving blue ball from the tab of a frequently used website? It's distracting and hopefully not symptomatic of a problem It appeared on this new computer/monitor, used to be an icon Thanks, --Laurie

Not sure if this is the correct topic, but I have been using Firefox for over 20 years, and after the last update, there is an icon missing from my Firefox browser page. It's the "file" icon in the very upper left corner of the window that allows "new tab", "new window", etc. I'm still using windows10, on an ASUS PC, but never had the problem until just recently. I've restarted the computer, reloaded the window, nothing works to restore that icon/function. Thanks - Mike B

Since latest upgrade (1/16/2026) I cannot log in to Outlook email. This is specific to Firefox 147.0.1 (Chrome and Pop Peeper logins to Outlook work fine). I tried clearing cache, updating, restarting, rebooting, trouble-shooting mode, private window etc. to no avail. I get 400 error from Outlook.

Followed unstall and trying to remove remaining folders, data from computer.

I cannot del these folders, etc despite being admin mode or from command line.

whats next.

I want to do a fresh install of Firefox but wont install firefox again if I have to an computer reimage.

Anyone use LastPass? Do YOU have any hair left? How do I put that extension up at the top. Where my red arrow points? ALSO......

Im entering the email and password i swear dozens of times every day...it never works right, ALWAYS need one or both lines filled in.  I DONT CARE IF IT DOESNT WANT ME TO SAVE THE PASSWORD. GOD KNOWS its NOT retaining it!  OK, im 75 years old. HAVE I LOST MY MARBLES?

Every time I try to open Firefox Mozilla this pops up:www.expedia.com/identity/api/v1/oauth2/callback/google-web?error=access_denied&state=MuRPJl7NGKnHkJs3P3gwVI9MUOzHbdnYA1eA8_aRTcA

How do I get rid of it? I have closed it but it returns the next time I try to enter firefox