MORE work needs to be done on a bill to help cancer-stricken firefighters win compensation before it gets Victorian Government support.

The bill, aimed at improving access to compensation for firefighters suffering cancer after being exposed to toxins, will be introduced in parliament today by the Greens.

Victorian Premier Ted Baillieu says he's yet to see the bill but forecast a complex set of issues to sort through.

"The minister (Emergency Services Minister Peter Ryan) will be having discussions with the Greens, there are a range of issues there, but we believe there are some complexities about the issue," he told reporters in Melbourne.

"I'm not going to get into detail, suffice to say we haven't seen their bill."

The bill, to be introduced by Greens MLC Colleen Hartland, proposes to amend the Accident Compensation Act 1985, to provide firefighters compensation for disease due to employment.

The move is in line with other states including South Australia, Western Australia and Tasmania which are also moving to look after stricken firefighters.

Similar legislation was unanimously passed by the Australian parliament in 2011 to support federally-employed firefighters.

Opposition emergency services spokeswoman Jacinta Allan said the opposition supported the principle of presumptive legislation and would work with all parties to progress the bill through parliament.