ผลิตภัณฑ์ทั้งหมด Community Forum

New system and firefox used to crash the tab, rather than the browser, but now it crashes the browser at the inevitable OOM situation

browser.tabs.unloadOnLowMemory is already set to true

I CANNOT get on to Archive of Our own, all firefox does is tell me "Secure Connection Failed" and display an error page. I have done everything, I have cleared my cache I have tried disabling security things and add ons I have tried the "about:config" thing MULTIPLE TIMES. It's only happening on my computer not on my phone PLEASE someone fix this I just want to update my fanfics I don't know why this is happening it's only been going on for about a week and it is UNBEARABLE.

Entire error message:

Secure Connection Failed

An error occurred during a connection to archiveofourown.org. You are attempting to import a cert with the same issuer/serial as an existing cert, but that is not the same cert.

Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more…

I am trying to switch back to Firefox after having used it once before. However, I am unable to use the browser at all. I have to run it with administrator permissions for it to even open, and when it does open, I am met with a completely blank grey screen with nothing but my bookmarks. I cannot click any bookmarks, nor can I click anything on the sidebar [passwords, account, etc.] I can't search anything, and I can't use direct links.

I have uninstalled four times using Revo Uninstaller, removed all lingering data all four times, refreshed the browser, refreshed my account, changed my account password, run troubleshooting mode, updated my computer, updated my drivers, and updated the app. Absolutely nothing has worked, and I am still unable to use it.

I'm not sure what else I can do.

Firefox is creating very high CPU use with many WebThumbnailExtension Web Connect processes. The processes disappear after shutting down Firefox and other programs that access the internet. Does anyone have an answer on how to prevent this from happening?

MacBook Pro M4 with MacOS Sequoia 15.3.1

Firefox and Chrome

When I search for businesses and then want to see the phone number I have to click a ‘call’ button and that takes me to a pop up message (see attached)

With the question: ‘Allow this site to open the tel link with Firefox?’

But when I click open link it doesn’t work. So I cannot look up the business phone numbers! This only happens on Firefox and Chrome. On Safari the phone numbers show without the call button.

My main browser is Firefox.

Please help! Thank you.

Hello, seen this a couple times in the forums but my situation is a bit different. Using Thunderbird 128.7.0esr on Windows 10 and I get the attached message occasionally when dismissing or snoozing a calendar reminder, sometimes multiple ones at once. It appears to be random and happens with different events. Only unique thing with me is this calendar is not synced or tied with an email address, it is solely local to my PC and it is managed, edited and added to almost weekly. I do have it backed up but don't want to mess with any settings until guidance is provided, I rely on this very heavily.

Any suggestions are appreciated, thanks in advance.

I keeep a file on my system which is essentially an annotated list of links to useful references. Since upgrading to Firefox 135.0, I can no longer open links to these references if they are local documents (links to websites work fine). Attempting to open a local document (usually an .odt file) brings up a window describing the file and offering tp save it, or open it with the system handler. Opening with the system handler produces an error message "unknown error" and suggests trying saving to disk first. Clearly Firefox does not know how to deal with .odt files, and I can find no way of telling it.

If I get to Settings - General - Files and Appications and scroll down the Applications window to ODT document, I find it set to "Always Ask". I can change this to "Save File", "Use System Handler (default) or "Other". "Save File" is not what I am trying to do, and the other two options produce the same result as "Always Ask". There seems to be no way of telling Firefox to open .odt files with Writer (or anything else for that matter.) The support page (https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file) suggests that I should have a further option "Use<application name>". But it just does not appear. Anyone any ideas?

I've been a Firefox user since the beginning, but every few years I leave the browser because it becomes unusable. I am at one of those inflection points now.

During the past few weeks, I've run into web pages that simply will not work in Firefox. I have not tracked all of the URLs, but can tell you they include navigation of Tax1099 (a website used to send tax documents) and AT&T, where I could not access their Premier shopping page. These pages load easily in Chrome and Edge.

Yes, I've tried standard troubleshooting, including disabling my longstanding extensions and all suggestions in this article (http://mzl.la/1xKrMnN).

I simply do not have time to troubleshoot this every day, every time I need something in timely fashion. It is a huge time suck. Firefox has -- again -- become an impediment to my work flow and it seems time to leave it, again.

I;m not asking for help; this is simply a fact. And Mozilla should consider it a reason why Firefox has lost popularity. Most people will simply move on, and not do any troubleshooting, take the time to search for solution or write to this board. In the past, I've been told that this is MY problem with MY systems (because this happens on two different computers). Whether or not that's true, it doesn't change the fact that other browsers do not have this problem. Ever, in my experience.

Hello Firefox Team,

I’m writing to report an issue I’ve encountered with Firefox on my Mac M2. When I double-click the window’s title bar, the window does not maximize or “fill” the screen as expected. In contrast, other applications (such as Chrome) correctly respond to this action based on the macOS setting ("Double-click a window's title bar to: zoom").

Here are a few details that might help in diagnosing the issue:

   Troubleshooting Attempted:
       I verified the system setting under System Preferences → Dock & Menu Bar is set to “zoom”.

I’m wondering if this behavior is expected with the current Firefox design on macOS, or if it might be a bug. Any insights or suggestions you might have would be greatly appreciated.

Thank you for your time and assistance.

Best regards,

I am running Thunderbird 128 (any version) on a Surface Pro 9 running Windows 11. After sleep/hibernate or going into energy-saving mode, TB hangs for a period of minutes. Eventually it comes back, but it can take 5-10 minutes.

I do not have this problem with TB 115 on the same machine, or TB 128 on other machines (e.g. running Windows 10 or Ubuntu). TB 115 on the same machine can take a few seconds to come back (longer than on my other machines), but that s OK.

I have the same expereince whether or not I am troubleshoot mode. I have created a new profile with no add-ons (and less acounts) and I have the same problem. I was wondering if it is something to do with the fact that I have 8000 folders, and somehow TB is hanging while it checks all the folders. That account is a fastmail IMAP connection, but I have experienced similar on a backup Microsoft Exchange account (again an IMAP connection) with similar number of folders.

Any help would be appreciated.

I've been an evangelical Firefox user for over 20 years now, and rarely have any problems. However... every day, I read The Times online (my mother gets a free digital subscription with her paper version), and they've recently changed their site radically.

So it's probably not a FF problem, but The Times people aren't helpful.

Anyway, as I scroll down the index page, I usually <CTRL> click on potentially interesting articles, to open them in separate tabs. When I have a few open, I go through them and read each one in turn.

With the new Times version, when I do this, the index page also changes to the one I've selected for the new tab, which is annoying. I asked their support people about it, but their reply was that <CTRL> click "isn't supported".

Obviously this is disappointing, as it's how I've always done things, and it still works on every other website I visit!

Can anything be done in FF to make it work?

Thanks :-D

FF 135.01, 64 bit Windows 24H2, build 26100.3194

Hi. I encountered a problem when browsing previous pagr after google search in android version of Firefox. The procedure for reproducing the problem is described bellow.

Environment: 135.0.1 (Build #2016074239), hg-7c2ff1aa3394+ GV: 135.0.1-20250216192613 AS: 135.0.1 Pixel 6a(Android 15)

Procedure: 1. Search any word(such as "test a") with google. 2. Tap any link showed in searching result. 3. Perform "previous page" gesture(horizontal swipe at edge of the screen), then searching result of "test" is shown. 4. Search another word(such as "test b") with google search bar of google website, not search bar of Firefox. 5. Tap any link showed in searching result. 6. Perform "previous page" gesture(horizontal swipe at edge of the screen).

Expected result: Searching result page of "test b" is shown.

Actual result: Searching result page of "test a" is shown.

Other informations: - This doesn't happen with other searching engine. - This do happen without extensions - This also happen in private session - Clearing cache solve this problem for a while but this happen again soon. - This doesn't happen in PC browsing mode

I encountered the same phenomenon when I searched the word that I've searched before. So I doubt that google search and cache algorithm of Firefox is not compatible.

I look forward to someone's reply or any information.

Hi, for the past couple of weeks firefox is causing the GPU to block firefox when trying to play a youtube short preview by hovering over the short. The screen goes white and then returns and it happens again if you leave the cursor over the short. After a few of these, the message comes up that the GPU (nvidia in this case) acceleration has blocked access to firefox. This will happen every time. The issue doesn't occur in chrome. The issue doesn't occur if firefox is started in troubleshoot mode. If I run in regular mode and manually disable my one extension (keeper) and the two plugins - widevine codec and cisco openh264 codec, the issue will still occur. I have no other add-ins. I have updated firefox and the nvidia drivers to the most current. The gpu is nvidia geforce 940mx with intel hd graphics 620. I am running 64bit windows 10 home on an hp envy laptop with i7 chip. Any ideas? Thanks.

After upgrade on iMac to Sequioa, my search bar no longer will show results for longer than a nano-second. Have tried to reach out to Apple Care but they are unable to help since not their product. Hard to describe - screen sharing is optimum if able :)