Firefox 技術支援討論區

I recently took a hit from potential malware while looking for a owners manual. I now have a popup that looks like the one attached. It looks to be from Mozilla, but I can't be sure. Can you help with this?

Firefox bookmarks exported from old Windows PC to html file. File transferred to new Windows PC and imported into Firefox. 'Bookmarks Imported Successfully' message seen. However no bookmarks visible in Firefox bookmark menu. Suggestions please?

YouTube won't start playing in Firefox. No add-ons enabled. The page is fully loaded, but clicking on Play makes nothing.

The fix is to disable "User recommended performance settings" and then disable "User hardware acceleration when available".

The problem is that hardware acceleration is enabled by default. In Edge or Chrome hardware acceleration is also enabled but it won't break YouTube.

I made a mistake and installed Firefox in the wrong location. I uninstalled and attempted to reinstall where I wanted the software to be.

The installer now tells me that I had Firefox before and will only reinstall it in the previous directory. No other option is offered.

I am LONG used to being deprived of user choice by the likes of Microsoft or Apple, but Mozilla SHOULD KNOW BETTER.

Can you help?

Thank you.

everytime you update firefox, i loose my personal toolbar that took me a long time to set up. how do i get it back without all the work? also, what happened to the printer icon in the main toolbar?

Here is screen shot:

My iMac is OSX. I use Firefox browser most of the time. I had used Safari years ago. Chrome had rarely been used. Firefox problems recently began. Please help.

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The website https://my.strathspey.org/dd/dance/12838/#cribs displays an image, which had a typo [Triangles used to be Traingles]

I am using Firefox 119.0.1 under Windows 10 Home Version 22H2 OS build 19045.3693

I had the page open in Firefox before the owner corrected the typo.

Immediately after the correction was online, all other browsers displayed the corrected version. But even now, hours later, after many resets by "Reload Tab", the Firefox tab still displays the typo-version.

I consider this to be a malfunction. "Reload tab" should bypass all caches, and reload the whole page directly from its server. - Is this a known bug? - If "Reload Tab" does not go to the source bypassing all caches, what doe it do? - Is there a workaround?

Dear Mozilla/Firefox, in the past week or so Firefox is noticeably slower to load than Norton Secure or Google Chrome. Running from a shortcut or pasting the same link into the address bar, Firefox takes around 25 seconds to load where Norton is almost instant. There are features of Firefox that I prefer over other browsers so hope you can guide me how to fix this. Thank you,

I am trying to log in to the Tesco retail site, and get this message: Access Denied You don't have permission to access "http://www.tesco.com/account/login/en-GB?" on this server. Reference #18.26cc19b8.1700734342.438f9dd8 This is a new problem - it was working fine a week ago, and I have made no intentional changes to the Firefox settings. I went to the Settings: Enhanced Tracking Protection, changed it to Standard, and added the Tesco site as an exception (this was following the advice on some other "Access Denied" posts) but it made no difference - I still can't log in. Everything works fine on Chrome, but I would prefer to keep using Firefox if possible. Any suggestions? Thanks

Trying to access my Tesco account but a page saying 'Access Denied on this server' appears. Can you rectify this? I urgently need to login to my Tesco Account.

Dr Robert Tranter

PS. I have tried to solve the problem for 2 days but no success!

Hi. I've used Firefox as my main web browser on desktop computers for over a year now, and it's so far been the best web browser I've used.... except for one issue when it comes to major updates to the app.

I have Firefox set to open up on the tab/site I was using before I end a session and close the app. Whenever there is a new major version release, the update gets installed the next time the browser is launched before showing the browser window. But, when the window opens back up, I'm not sent back to the site/tab I was previously using. A new tab automatically opens up to a Mozilla page saying that Firefox has updated, along with a large promotion for another Mozilla service.

I then need to manually close this new tab, and find the tab I was previously using during the last session before the auto-update. This is mildly irritating since it takes some control away over how I want Firefox to start up, and the new update tabs seem to just be used as a way to promote other Mozilla products seeing how the actual "Firefox has updated" text is very small.

Is there a way to turn off these automatic new tabs after every major auto-update? Or if there isn't, could an option to change the way Firefox notifies about updates be added in a future version, such as using the OS' notification option instead of opening a new tab?

Currently running the latest version of Firefox on an iMac, with Mac OS Sonoma.