I can sympathise with this. We only support Firefox for our CMS editing interface, and then, only test in the latest version.
This is a somewhat more extreme version of the OPs decision but we also started work on Decal when the only browser with a JavaScript debugger was Firefox[1].
The interesting thing is we've deploying Decal ourselves for quite a while and only now just starting to try and open it up as a platform for other designers.
We have never had a client object to having to use Firefox to manage their content, however in running people through our "Decal 4 minute challenge"[2] we've found a huge amount of resistance amongst designers themselves.
This leaves us in a tricky predicament: we want designers to sell the system to their clients who, in our experience, don't care about using Firefox to manage their content, but in order to engage/on-board those designers in the first place we have to get past that initial hurdle (as it turns out, 4 minutes is way too long and we're refining that on-boarding process down to a target of about 30 seconds).
This is a somewhat more extreme version of the OPs decision but we also started work on Decal when the only browser with a JavaScript debugger was Firefox[1].
The interesting thing is we've deploying Decal ourselves for quite a while and only now just starting to try and open it up as a platform for other designers.
We have never had a client object to having to use Firefox to manage their content, however in running people through our "Decal 4 minute challenge"[2] we've found a huge amount of resistance amongst designers themselves.
This leaves us in a tricky predicament: we want designers to sell the system to their clients who, in our experience, don't care about using Firefox to manage their content, but in order to engage/on-board those designers in the first place we have to get past that initial hurdle (as it turns out, 4 minutes is way too long and we're refining that on-boarding process down to a target of about 30 seconds).
[1] http://www.decalcms.com/page/Support/#whyFirefox
[2] http://www.decalcms.com/page/4_minute_challenge