In the beginning, it worked normally, but recently it writes error and does not work

UPDATE: I loved this addon, but recently I was on a webpage and when I went to clear all the cookies, not all of them were cleared, and I was still logged in. Another add-on I have was able to clear all of them. I'm not sure why this add-on doesn't clear them all anymore. This add-on also does NOT clear local storage of a tab. I REALLY wish it did. :(

ORIGINAL REVIEW: I love this add on and use it all the time before closing tabs. I love it because I don't have to completely close firefox each time I want to clear cookies. I only have two suggestions: First of all, could you make an option to clear ALL the cookies in the cache, not just one tab? I would love this feature. Sometimes it is desirable after you've been browsing a while and have since visited many websites, to have a simple button to clear all cookies. Secondly, consider adding a Bitcoin Cash donation address. I see you accept Bitcoin but the fees are ridiculous. I know the Blockchain.info wallet supports both coins, and I would certainly donate a couple dollars. Cheers and thank you.