Firefox 技術支援討論區

Hi all,

I feel like this is a problem that must have been experienced and solved a thousand times... however I've tried all the suggested fixes I can find and the problem still persists.

When I load Firefox the pages take ages to load. It doesn't matter what the page is, it takes ages, except that about: pages load fine, no problem. When I say pages take ages to load, I mean that everything about the page takes ages, not only the next, not on the images and other content etc, everything. This only started happening today and I only created a new profile a month or so ago. I don't have many tabs open (maybe 20) of which 9 are pinned. I do have lots of extensions installed.

I've tried troubleshooting/safe mode, that makes no difference.

Private browsing and loading another profile are fine, they don't have this problem.

I've cleared all cache and data, cookies, etc, including startup cache.

I've deleted the content-prefs file, and removed places files.

I've tried disabling and enabling hardware acceleration.

I've tried disabling TRR.

Probably some other things too, but so far nothing has worked.

Suggestions please! :)

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.

I have used Firefox since forever, was a Netscape user in the past

But for about 3 months Firefox simply is no good anymore\

It is more and more sites I can not access with Firefox and have to use Edge instead.

Last example, just now

https://www.cibc.com/en/journeys/new-to-canada.html

See screens attached

This is just one example, many other sites simply do not open, or open properly, in Firefox

WHAT IS HAPPENING?

Thank you

I'm trying to perform the clean reinstall for Firefox on my computer. But, I see the instructions for the uninstall, Delete the Firefox installation folder, which is located in one of these locations, by default:

   Windows: (Note: Check both folders.)
       C:\Program Files\Mozilla Firefox
       C:\Program Files (x86)\Mozilla Firefox 

Being I'm not computer wizard I had trouble finding the location of such folder. But when I accessed my program list in my windows program list I see a program named Mozilla maintenance service. When I click on that I see a format/window to "uninstall C:\Program Files (x86)\Mozilla Maintenance Service\." Is this the program/folder I need to uninstall to complete the proper instructions I need to perform a clean install? If so, when I delete it I then reinstall Firefox once again after the uninstall procedure? Is performing the uninstall procedure going to screw up my Firefox browser and my many bookmarks I have accumulated over the years? Can someone please help and explain? Thank you.

Hi, For about the last month or so, the Yahoo mail tab closes itself after I click on an email attachment to open the download dialog box. This happens exactly 30 seconds after clicking on the attachment, whether or not I go on to open or save the attachment. It does not happen if I merely 'preview' the image. I don't know if all attachment types behave the same, but it applies at least to jpg and pdf files. The tab can be reinstated via History/Recently closed tabs.

Firefox does not crash, and there are no crash reports. In other respects this is similar to a previous post by 'eladopoulos' on 4/30/22, 8:17 AM (https://support.mozilla.org/en-US/questions/1375635).

Using Safe mode makes no difference. I had set browser.download.improvements_to_download_panel to False, but reseting to True makes no difference. Thanks in advance.

I have been fighting with Xfinity.com for too long now over a "rendering error occurred: invalid time value" message when I log in to their billing function for my account. I am using a Windows 7 PC with whatever Firefox version is the most current.

Among the responses from their "experts," I see something that has to do with "browser add-ons may be causing your problem."

I have looked at my Firefox settings > manage your extensions as well as settings > manage your plug-ins. Under Extensions enabled I have 2: Norton Safe Search and Norton Safe Web. Under Plug-Ins enabled I have OpenH264 Video Codec and Widevine Content Decryption Module. That's all. Could any of these be causing the problem?

Does this "rendering" error have anything to do with Javascript? (I thought Firefox did not support Java so never paid any attention). If it does relate to Javascript, how do I fix my Firefox browser settings to enable it for the Xfinity.com website to see if that fixes anything?

This is so incredibly discouraging.

I just downloaded the lasted "update" and suddenly EVERY SINGLE WEBSITE I visit, INCLUDING FIREFOX, is giving me a security error:, Secure connection failed, Firefox did not connect.

This is obviously something in the latest download, because the exact same sites have no problem when i open them in Chrome. In fact, it's the ONLY way I can post this problem, because Firefox is preventing me from accessing the Internet entirely.

Please fix this ASAP, or I will have to move permanently to a new browser. I can't afford this kind of disruption to my work.

DEAR SIR MAM PLZZ HAVE A LOOK

https://drive.google.com/file/d/1iJqUWyr_BYMcOoQj6QvFSaiSEf4NuJR2/view?usp=drive_link

GOOGLE CHROME WORKING FINE BUT FIREFOX AINT WORKING

THANK YOU

mail me at [Email address]

I love Firefox!!! But ..

After I updated I an no longer see the bottom 20% of the text in my All Bookmarks->Bookmarks toolbar where my toolbar only displays the text of the drop down name.

It seems to be a recurring issue where new versions really mess up the spacing in the drop down menus of the toolbar mostly (not this time).

My menus are just Perfect now .. although I'd love for the menus shown in the 'manage bookmarks' window to have Exactly the same spacing as the Firefox toolbar menus (the 'manage bookmarks' window has Much larger spacing and is a bit of a pain to use due to this).

Here's my no doubt primitive userChrome.css

menupopup:not(.in-menulist) > menuitem, 
menupopup:not(.in-menulist) > menu {
  padding-block: 3px !important; /* reduce to 3px, 2px, 1px or 0px as needed */ 
  min-height: unset !important; /* v92.0 - for padding below 4px */
}
:root {
  --arrowpanel-menuitem-padding: 4px 8px !important;
}

#placesList treechildren::-moz-tree-cell-text {
  font-size: 11px !important; 
}
#placesList treechildren::-moz-tree-row {
  max-height: 10px !important; 
  padding-bottom: 0px !important;
  margin-bottom: -3px !important
}

Starting this morning I suddenly cant delete or mark emails as read in Outlook.live.com. Even if I open an email, and it appears as read after that, if I refresh or leave the page and come back, its marked as read again.

I tried dropping all add-ons (a kill switch to drop all add-ons and re-activate them is still a feature I feel Firefox needs, I have to click every single one of them every time) to no avail.

I was in the process of writing this question on the Microsoft forums (which is usually like whizzing in the wind) when I thought to try a different browser. I had zero issues and Outlook.live.com worked perfectly normal on Microsoft Edge.

This HAS to be a bug in a recent update in Firefox

Fire Fox has taken to auto filling my password on my brokerage account. This leaves the account available to anyone that can turn my computer on. I do not have a password saved for the brokerage account and have the company listed to be excluded. This just happened in the last few weeks.

YouTube videos on Firefox getting slower and jerky. After refreshing Firefox (Settings -> Help -> More troubleshooting information -> Refresh Firefox), it is OK, but only for a short while. Then the problem starts again. Same YouTube videos are running fine with Chrome at the same time.

Running Windows 11 Pro (Clean windows setup not long ago and the issue was there from the beginning.) German Language Firefox 116.0.2 Build ID 20230805021307 Intel CPU i7-1360P, 16 GB RAM, 1TB M.2 SSD

Would really appreciate a solution for the issue because I really like Firefox!

Merely typing an email when the tab and window it was in shut down (am using linux mint and most recent FF build.) I have difficulty understanding programmer directions as typically given but can follow a path > to files and folders. I found firefox old backups and sessions folder but none of the session restore files are dated, won't open and won't restore. I wish there was a straight-forward path to restore "my sessions" when issues develop. Just show me where the file path > where the files are > and what to click. Thank you.

When trying to click on links inside PDFs, the url is changed to undefined, producing an error message. For example, a Hostgator article is converted from https://hostgator.com/help/article/how-do-i-change-my-dns-or-name-servers to https://undefined/help/article/how-do-i-change-my-dns-or-name-servers

I have tried clearing the cache, troubleshooting, and get the same result in safe mode, and reverting back to Firefox default settings. And I still get the same result. I've attached an image of the error message.

Keep getting this on a number of websites. Most of them I have used for years. Can't give the websites as there are too many but some are pitchsidemanager.com, hattrick.org, skysports.com and sportinglife.com . Just four of at least 14 give the Hmm. We’re having trouble finding that site message. I use No Proxy and have my anti-virus turned off when I get the message. I have tried various other proxy settings but the same thing happens. The thing is that I have to keep refreshing the page until it does actually connect and that can take a good few minutes. Sometimes I have to restart the browser. Why is this happening since the last few updates?

Ever since last Firefox update have been unable to access my DNA matches in my Ancestry program. Are you working on fixing whatever it is that you did to cause this? Heather

For the past few days, when I try to log on to PlayStation on Firefox, the sign-in page sits on a loading swirl after inputting email. There's a clear memory leak shown on Task Manager. The menu bar's right-click doesn't draw properly. FF can't be closed and needs to be terminated. The only extension I have is uBlock Origin disabled for this site.

This website works on Edge.

Attached is the broken menu from right-clicking the menu bar.