Diễn đàn hỗ trợ Firefox

since updating my firefox browser I am having trouble with both instagram and facebook. The pages won't load regularly and when they do load - it is only partial pages. Have tried to find solutions to fix this. These are the only two websites that I'm having an issue with. What can I do?

Pbold textage does not scroll. It doesn't even show the scroll bar

example, for this link:

https://www.firstchoice.co.uk/holiday/deals/summer-sun-holidays?units[]=000923&qcmk=1090113040&utm_medium=crm&utm_campaign=IB_UK_FC_Newsletter_Trade_Manual_Email_20260227_A&utm_source=email&eid=ECP_9f8b82d7-f27e-52f3-8e60-6af8363cbb36&Is_retargeting=true&Pid=email&C=Inspire%20and%20Book&Af_adset=IB_UK_FC_Newsletter_Trade_Manual_Email_20260227_A&Product%20Name=Sun/beach%20package%20%E2%80%93%20Short%20Haul&Format=Image&Destination=&Content%20Style=Deals

Over the past three weeks, since I updated my Firefox version to 148.0.2 (aarch64), a black or white rectangle appears at the top of all websites and prevents me from accessing some links on those sites.

I refreshed and cleared the cache, and it worked for a while, but then it appeared again on every single website.

It makes it unusable that, for the first time in 15 years, I might have to switch to another browser if I can't solve it.

In the attached picture, you can see that the place line covers the top of the site and cuts off the Firefox logo and the links above.

Any solution is welcome

An old website appears in the browser when I log into the new website. The new site is "www.thestoneshop.net". What comes up in the browser is "Custom | Foothills Countertop | Northglenn". The old website.

For some days now the Guardian (UK journal) website can't be loaded. It's specific for Guardian, I have no such problems with other sites, and I don't have this problem with Guardian with Chrome. I've erased cookies and caches, restarted my computer, to no avail. I'm using version 146.6.0 of Firefox on MacBook Pro 2020 with Sequoia 15.7.1.

I work out of LinkedIn. Just recently, I have trouble opening About sections on LinkedIn. I have both firefox and safari on my macbook pro laptop. I can have both applications open on my computer in different windows and use this constantly when working. I mainly use firefox if I only use one of the applications. Not being able to access these same sections is making it difficult. LinkedIn says I need to clear out my cache and whatever. I am not sure how to do this and there may be other things that need to be done. Can you help?

I can do what you advise but one single website is not accessible due to JSON problem block tried devtools.sjonview.disabled did NOT work. https://www.ancestry.com/

When attempting to sign in to my social security account I get the following message: Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

Why when I search ABOUT:BLANK TAB, an empty page displays instead of the site I am searching for? I then have to go back and try again and again until it finally displays.

Cleared Cache, searched for extensions and not sure what to look for...they were verified by apple to be "normal". What else? Macbook Air 2023 running Sonoma 14.8.1