Look any addon that allows you to save only 7 items ofdata like clipboard items. Can be much better, so you can always be ready to copy and paste your passwords for browsers. sync, and or passwordManagertAddons ,
This is not that good but it can function better like A notepad or sticky notes that allows you to save as many passwords or links or emails or whatever in there as long as you want, it must be better than clipboardic. And i remember I used it as an addon for firefox but the 7 limit is Shitty

It needs a quick 'copy button' in order to be useful and practical.
And i had to reinstall it again after it broke [it couldn't copy] shortly after multiple copy tasks.
And it cannot copy text from firefox add-ons page.