How to switch proxies and delete cookies with a single click

hi i have 10 private proxies . I am looking to change proxy everytime i tweet from one account.like tweet from 1 account. delete cookies.change proxy. tweet different link from 2nd account then repeat.I am doing this manually.
what is the easiest way to manage this.
I have private proxy in this format
proxy: port:username: password

Have you tried creating a macro for this?

If you like to do this manually within the browser, then use an extension in Firefox to change proxies with one click. There are plenty available for free, just search. In between changing proxies keep CCleaner open and delete cookies (deletes both normal and flash ones), cache, etc... So in total you tweet and then it takes 2 clicks to tweet again.

if your proxy provider offers ip auth too, so you don't necessarily need to use usernameassword auth, you can cycle through your proxies pretty easily with imacros and using a .csv as datasource with your proxies and if you put the CLEAR command into the macro, it will clear your browser cache/cookies, you should run the macro in loop

i'm not sure if imacros can capture the tweet button though, either because of this or because of your proxies auth type, imacros might not do the trick, so you need a custom bot or followliker for instance