I've just updated from Firefox 101.0.1 to Firefox ESR 115.18.0 (I'm still using Windows 7, so can't get a more recent release). I have a program which reads a cURL command from the clipboard then runs cURL repeatedly with slightly modified versions of the command. The command is read from the clipboard rather than pasted into the command prompt window because it may be more than 4096 characters. This no longer works with the updated version of Firefox. Comparing the cURL commands from the two versions of Firefox showed lots of "^" characters had been added. For example "120Months|Yield|RiskScore" had become "120Months^|Yield^|RiskScore". When I edited the cURL command to remove the "^" characters, everything worked like it had before the Firefox update. I suspect this is related to the changes introduced by Bug 1777800. I would like to know whether the problem can be reproduced using up-to-date versions of Firefox and Windows. Starting with web page https://www.trustnet.com/fund/price-performance/t/investment-trusts?norisk=true&PageSize=25 use the network monitor to capture the result of moving to the next page of data, Copy as cURL (Windows) and use the result. Do you get a response containing the data for the next 25 funds or a very small file containing an error message?