trimless for g-mail

i used to have "trimless" for my g-mail, which was wonderful, b/c i can't stand having to click to another screen to see all of an e-mail. but it no longer works; i attribute this either to the latest firefox update, windows 11, or google. is there a program i can use to get my g-mail UNtrimmed? thanks!

Hello,
The best replacement: Auto Expander for Gmail. The most reliable successor specifically designed to stop Gmail from cutting off long messages is Auto Expander for Gamil. It functions exactly like Trimless did by auto-expanding long threads and preventing the typical message truncation.
Auto Expander for Gmail™ - Chrome Web Store