Diễn đàn hỗ trợ Firefox

I use FF on desktop. Recently, I've run into a problem. My desktop browser will not load any pages... except Youtube. Youtube loads just fine, I can open a video or browse channels or community pages normally. I have fully reset my browser, reinstalled it, and disabled extensions. Other browsers on my PC will work normally. I have very few extensions: Sponsorblock for Youtube, uBlock Origin, and Facebook Container, that's it. I am not using a proxy or VPN. Troubleshoot mode did not fix the issue. I'm not the most tech savvy, so I apologize if I missed anything here.

Any insight is appreciated. Thanks!

The icons on my home page suddenly became significantly reduced in size. Sure, I can tell what they are, and I've increased the text size for their identifiers below the icons. But they are now so small as to be not pleasing to the eye. How can I put them back the way they wuz?

I understand that as from 14th March 2025 I will need to update Firefox. I am currently running 102.0 and have sucessfully prevented Firefox from updating to later versions. I did this to prevent the updates positioning the tabs in the wrong place. Please can you tell me if the CSS script that I use to put them back into their correct position, i.e. below the Bookmarks Toolbar, will still work.

Also, will newer versions allow the user to choose where the tabs are positioned? It was possible to do this in earlier versions and the choice is also available in other browsers.

I have also managed to stop Windows 10 updating for several years too, Microsoft kept altering my laptop in unacceptable ways.

I always use the middle mouse button (pressing the scroll wheel) to open and close new tabs, but since the update, it doesn't work anymore and now types "=" if the cursor is in a text field. For context, I use an MX Master S3, mapped with Logi Options+.

Anyone else having this issue? How do I roll back to the previous version??

SOLVED: It was a bug with Logi Options+, not Firefox. When I hovered over the tab for the presets I had for CaptureOne, I noticed it also said Firefox. So seems something weird happened there. Deleted that preset and the issue in Firefox went away.

I couldn't find a way to delete this thread, though.

I am trying to access the link "https://www.sorn.service.gov.uk/". This is the address of a click through from the webpage "https://www.gov.uk/make-a-sorn".

I keep getting this error:

"Secure Connection Failed

An error occurred during a connection to www.sorn.service.gov.uk. PR_CONNECT_RESET_ERROR

Error code: PR_CONNECT_RESET_ERROR

   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 on Windows 10 Pro 22H2 19045.5011, using Firefox 132 (64-bit), not running Kaspersky, I do have AdGuard (7.19.0 (4853) (CL 1.16.44, DL 2.5.41 )) and Malwarebytes (4.6.17.334) on my system along with their browser adons. I have attached some screenshots, hope they are useful.

Please help.

My extensions are not showing up in the firefox browser, on menu bar, tool bar, or bookmarks bar. I am elderly and NOT computer literate. What to do? Using Windows 10.

Thank you.

Dear Firefox Support,

I am experiencing an issue with YouTube and some other websites not loading properly in Firefox. The sites continuously try to load but never fully display. I've attached a video link demonstrating the problem for reference: Video Link Video Link.

Could you please look into this issue? I’ve tried clearing the cache and disabling extensions, but the problem persists.

Thank you for your support.

Best regards,

Information Your browser is being managed by your organization.

I am 75 years old. I am RETIRED there is NO REASON for an organization to be in CONTROL of ANYTHING on my computer. How do I STOP THIS?

I don't know if this is related or not, but Something is BLOCKING my ability to use check boxes or circles. Sometimes I can see the box but my response is NOT VISIBLE. Tonight I was trying to complete a survey and the questions were visible but I was COMPLETELY UNABLE to see the answer boxes/circles. Sometimes they would be briefly visible when the page initially opened but QUICKLY DISAPPEARED and were NOT identifiable by manipulating my cursor using mouse, space bar, or tab bar.

I have stayed with Firefox as my default browser for several DECADES and PREFER NOT to change now. BUT this MUST STOP!

I have Firefox on two Windows computers and was wondering what is the proper way to sync them.

One computer is not used often and I want to sync Firefox on it it with the Firefox on the computer I use daily so I want the Firefox that does not have the updated files updated using the Firefox data files on the computer I use daily and not the other way around. So what is the correct procedure to do this other than to make sure the Firefox program version is updated on the computer that is not used often?

Thanks

Every time I try to view a pdf file on Firefox I can view the file but in the lower right 1/4 of the screen I get a graphic of a page with shaded areas representing lines with writing on them. There is a type of pen cursor moving along the line.

This happens with different pdfs - from the internet and from my saved files. This doesn't happen on another computer with Firefox.

I've deleted and redownloaded Firefox an number of times, also tried troubleshoot mode - no improvement. Virus scanned, restarted a number of times.

Pdfs work on edge and chrome and reader with no problem.

I have a screenshot.

Any Ideas? Thanks

When I logged into my laptop on 9th November Firefox had closed. This happens sometimes, I'm often not sure why, but this time the previous session didn't automatically repopulate when I restarted. I navigated to the history options with the idea of retoring the previous session - either using that functionality or individually opening previous windows - but history was blank and the previous windows option was greyed out. Following suggestions online I've looked for .bak or .json or similar files to use as restore points but there's nothing since much earlier in the year up to 8th November, which are pretty much empty, and the 9th.

I'd be very grateful for any suggestions!

Hi,

I have an odd problem with a friend's Firefox and Thunderbird on Windows. The font changed to white in the address bar, the tab titles, some content on websites, some elements of the settings etc.

From what I can see there is no difference to my settings under "Language and Appearance". When I create a new profile either with the profile manager in Firefox or by renaming "%appdata"\Mozilla Firefox", nothing changes. So I can rule out a custom userchrome.css or similar in the profile folder. When I switch to "troubleshoot mode" with the old or the new profile, everything looks fine.

It also affects Thunderbird, but no other programms.

I can't figure out, where the problem lies.

I can't find a place to control third party cookies in the Security section. I used to be able to donate on my church's website but now it doesn't work. I tried doing it with Microsoft Edge and it worked fine. I hate to erase all my history and cookies because it takes away log-in info on my regular websites. Any ideas? Thanks for your help Terri

Hi,

I am developing a website of my own and in that website I want to implement a handler for Content-Security-Policy violation reports. I want to test if this handler works as I expect and therefore I have configured a webpage such that is will report CSP violations (I see them in the web developer console) and I want to have them sent to my application's CSP-violation handler.

In my test environment, the application is running on localhost. I have run my web application both on HTTP and HTTPS (with a self-signed certificate), but in neither case Firefox is sending any reports to my application.

My CSP headers look as follows: Content-Security-Policy: report-uri http://localhost:5281/csp-violation;base-uri 'none';default-src 'self';form-action 'none';frame-ancestors 'none';report-to csp-viol;script-src 'unsafe-eval' 'nonce-9FuQ3NuVoW66DT1ZU4w9EPSymnHE1/hg';style-src 'unsafe-eval' 'nonce-9FuQ3NuVoW66DT1ZU4w9EPSymnHE1/hg' Reporting-Endpoints: csp-viol=http://localhost:5281/csp-violation Report-To: {"group":"csp-viol","max_age":10886400,"endpoints":[{"url":"http://localhost:5281/csp-violation"}]}

When I run my application using HTTPS, all HTTP in the endpoints will also be HTTPS.

I have verified that when I post something by hand to http://localhost:5281/csp-violation, my handler is executed, so that is not the issue. I believe that Firefox is just not sending the reports. Is there a way to configure Firefox such that it will send the CSP violation reports to my application when run on HTTP(S) on localhost?

Sincerely, Marcel