Firefox Community Forum

My Home page is a local HTML file featuring a CSS-based tabbed notebook holding links organized into various categories. When exiting FF, I always have this page as the active browser tab, so that on start-up it's still the active one in the event of multiple open browser tabs.

Until v151.0.4 (and still now with v152.0), if I exited FF with the active notebook tab (actually a styled radio button under the hood) in my CSS tabbed notebook something other than the first/leftmost tab, FF would restart with that being the active tab, but after a few seconds of CPU activity as the browser initialized the active notebook tab would switch to the first/leftmost one. (In my HTML I also have <input type="radio" name="tabs" checked> specified for this first/leftmost instance.)

Since the update, however, it remains stuck on the one from the last browser session as first displayed. I suppose I can live with this, but I do wonder what accounts for the change in behavior. If it's by design, where is it documented? If not ... maybe it calls for a bug report.

For many years I have used Firefox as my browser with my homepage as nytimes.com. Beginning last week, Firefox will not open the nytimes.com website

When opening a new page in Firefox I am shown a few widgets.

It shows the time of sports events and different timezones. But it shows this in a non-local time format - the 12 hour format (so it says 06:00 PM instead of 18:00).

In about:config I found a setting called "browser.newtabpage.activity-stream.widgets.clocks.hourFormat" but what are the acceptable formats to use here? It's not a boolean value, and by default nothing is there. I tried writing 24, HH:mm, and some other things, but didn't notice a difference.

With Firefox 151.0.4 on Linux Mint I can login to https://www.ftb.ca.gov/myftb/index.asp with username and password, then I get the message: "You may have pressed the back button, refreshed during login, opened too many login dialogs, or there is some issue with cookies, since we couldn't find your session. Try logging in again from the application and if the problem persists please contact the administrator. " . Accessing FTB with Chrome works.

Hi everyone,

Since the Firefox Developer Edition update 152.0beta, saving as a PDF via the print menu no longer works. Although the “Save as PDF” option is available and selected by me, the job is always sent to the laser printer (which is not supposed to print it, of course). This happens on every conceivable website, so the website itself is not the cause. (Platform: macOS Tahoe 26.5.1)

For years, generating PDFs via the print menu has worked flawlessly with FF—now I’m forced to take a detour via Safari, for example—which works correctly in the long run—but isn’t my preferred solution. I don’t think you need different browsers just to use “normal” functions. So who has recently tinkered with this FF feature?

Since I can’t find the relevant setting in the FF preferences—and a “search” on this topic has been unsuccessful—I’d like to know if there’s a solution?

Best regards, HS

I lost all of my bookmarks and saved passwords with the latest update. How can I revert back to my old version so I can at least save them to a file to be imported?

I have a firefox account and I sync it to at least two devices. Now I need to change some settings. When I select the change, a prompt appears, asking for a confirmation code as expected. But I never receive a code on my e-mail. I tied many times, over the last days. I checked spam repeatedly. I added accounts@firefox.com to my contacts. What could be the problem? What can I try?

Since the last upgrade Firefox is running very slowly. Many sites that I use daily either take so long to open or don't open at all. I have to open MS EDGE which opens up these sites within microseconds.

I prefer using Mozilla, but unfortunately looks like I may have to move as Firefox is now almost useless for me.

Can anyone suggest anything I could try.

thanks

Muz

CDNsearch engine becomes my Mozilla search most times itself without my permission . each time i change it to Google search engine but again when i open Mozilla after a while i see CDNsearch engine at first page of my Mozilla. how can i delete it permanently ?

I am no longer able to open in Mac Preview or save when hitting Command + P, then 'print using system dialog'. It will only print instead. For instance, I save certain web pages as PDFs using the print dialog and now it will only print when trying to use either the save or preview options. Command + P, print using system dialog, then I choose either save as PDF or open in Mac Preview, but as soon as I do one of these it will only print. I am able to use save in the drop-down list of printers, but I need to be able to open in Mac Preview.

I am reporting a technical issue regarding the built-in Firefox VPN feature. It was fully functional in my location (Czechia) until June 15, 2026, but it suddenly disappeared from my toolbar and customization menu on June 16, 2026.

Despite following the troubleshooting steps provided in the official help article "Unable to find the built-in VPN in Firefox," the feature remains unavailable.

Here is a summary of the diagnostic steps I have already performed:

- Data Collection settings: Confirmed that "Allow Firefox to improve features, performance, and stability between updates" is enabled.

- About:studies: I have checked my active studies as shown in image_464983.png. There is no "VPN - MVP Beta Holdback" study listed that would explain the removal of the feature.

- About:policies: The Enterprise policy service is inactive, and there are no restrictions blocking IPProtectionAvailable.

- Account management: I have signed out of my Mozilla account and signed back in, but the VPN icon did not reappear.

- Installation: I have performed a clean reinstallation of Firefox, which did not resolve the issue.

I have also checked the toolbar customization menu and the overflow menu, but the VPN icon is not available.

Since this feature was working perfectly until yesterday, could you please investigate if my account profile has been excluded from the current rollout or if there is a regional issue affecting users in the Czech Republic?

I have attached my about:studies screenshot (Screenshot_about_studies.png) for your reference.

for years now I have had this issue when browsing. It is so annoying. I have tried all the suggested troubleshooting. I deleted all extensions. This helped for a while, but not for long. Now it's so tedious to browse that I am thinking of getting rid of Firefox. It has just become unusable and no one can seem to fix it. I am using Windows 10 and no extensions. It often happens when I first open a page and while the page is being pulled up.

Whenever I try to full screen in any streaming websites, it's not full screen at all. There is a little bit of space in the left-side and top-side of the screen where the other windows or applications I have can be seen (or my desktop if nothing else is open). This is not happening to other browsers. Can you please help me to fix this?

Hello,

When I opened Firefox this morning, it downed the newest version.

Since then it becomes nearly impossible to use, locking up after a few minutes.

Are you aware? Is this being fixed? Can I go back one version? I used Windows 10, is that the issue?

Thank you.

For some reason, I am locked out of signing in to Mozilla VPN. I have twice changed my password & recovery key, & then been returned to the app to login & it has failed to do so?

Please show me the settings relating to my connection to triodos.co.uk. I need to remove the digit 9 which appears by default on the login page.