Opera does not open 50% sites

helium

helium

I use newest Opera USB two years on my noyt (2012, Win7-64).
The example of the bug. I don't open the picture:
https://www.itl.cat/pngfile/big/167-1679035_clouds-4k-wallpaper-pc-background-beautiful-clouds-in.jpg

(Remark. The bug exists from ~June 2021.
Inet connection is slow from ~June 2021.
Inet connection is very slow from ~October 2021.
On Jan 2022 I updated root certificate isrgrootx1.der of Win7-64 (2012) from https://letsencrypt.org/certs/isrgrootx1.der for opening more sites. But Opera didn't open all sites.)

Today I downloaded newest browser SlimJet. The bug is also exist.

Today I downloaded newest browser Firefox.
Firefox opened 100% sites of inet! Firefox contains new biltin certificates.
I turned off option -
'Query OCSP responder servers to confirm the current validity of certificates'.
Firefox opened 100% sites of inet very fast!!
So many people are upgrading Opera to Firefox...
But Firefox has too old disain of interface and too small functions...

helium

helium @helium

Better translation.
I've been using the latest Opera USB for two years on my laptop (Win7-64 2012).
An example of an error. I can't open the picture:
https://www.itl.cat/pngfile/big/167-1679035_clouds-4k-wallpaper-pc-background-beautiful-clouds-in.jpg

Note. The error started around June 2021.
From June 2021, some sites began to open slowly. Some sites stopped opening.
Since October 2021, 90% of Internet sites began to open very slowly, or stopped opening at all.
Since January 2021 I have updated the root certificate isrgrootx1.der (Win7-64 2012) from https://letsencrypt.org/certs/isrgrootx1.der
25% of Internet sites began to open, and quickly.
But Opera did not open 100% of Internet sites.

Today I downloaded the latest SlimJet browser. Same error.

Today I downloaded the latest Firefox browser.
Firefox opened 100% of Internet sites quickly!
Because Firefox contains built-in certificates.
I turned off the Firefox option:
'Query OCSP responder servers to confirm the current validity of certificates'.
Firefox opened 100% of Internet sites very quickly!!
That's why many people upgrade Opera to Firefox…
But Firefox has too old a design and too few options…