css - is @import cached in firefox? -

i found import directive in css file working on @ moment:

@import url("adverts.css"); 

when @ website in chrome, adverts.css gets imported fine , styles file used expected. if @ website in firefox don't!

the odder thing when rename adverts.css adverts1.css , change import to:

@import url("adverts1.css"); 

the file of sudden works in firefox :d

so wondering if firefox has strange caching in place css @imports?

fyi: use firefox 22.0

out of comment problem installed adblocker.

the change adverts.css adverts1.css had result, file did not match rule ad detection anymore, , therefore loaded then.

to avoid such problems (also other plugins) test sites common plugins , without plugins. in chrome of problematic plugins deactivated in private browsing. or can use different profiles 1 testing without plugins, 1 problematic ones , 1 normal browsing.