If you're job hunting, contracting for multiple clients, or running a side project alongside full-time work, your browser has become a mess. You have personal accounts mixing with work accounts, browser history from one context bleeding into another, and no clean separation between what you're doing and who you're being while you do it.
Here's how to use Firefox to create clean separation.
The Problem with One Browser Identity
Most professionals browse as one person across all contexts. Your personal Google account and your work Google account fight for the login session. Your banking session is in the same browser history as your LinkedIn browsing. Your job search history is in the same browsing session as everything else.
This isn't a security issue (usually). It's a focus and clarity issue. Mixing contexts makes it harder to be intentional about what you're doing.
The Firefox Approach: One Browser, Multiple Containers
Firefox's Multi-Account Containers let you create separate "contexts" within the same browser window:
- Personal: social media, personal email, personal projects
- Work: work email, work project management, company tools
- Job Hunt: LinkedIn, recruiting sites, job boards (completely separate from your work context)
- Finance: banking, brokerage, crypto — isolated from everything
Each container has completely separate cookies and sessions. You can be logged into two different Google accounts simultaneously, one in Personal and one in Work, without them interfering.
Setting Up Your Container Structure
Install: Multi-Account Containers
Then:
- Create containers for each context you have
- Assign key sites to their container (right-click on any link → "Always Open in [Container]")
- Within a week, the separation is automatic — you never have to think about which container to use
For job hunters specifically: keeping a separate "Job Hunt" container means your recruiter activity, salary research, and company research don't appear in your general browsing history or influence your advertising profile in contexts you don't want them to.
What About Work-Issued Laptops?
If you use a work-issued laptop for personal browsing, containers don't solve the underlying problem (your employer's MDM software can see your browsing). In that case: keep personal browsing on your personal machine, or use a Firefox profile configured as "personal only" that you can quickly close and hide.
The container approach works best on personal machines where you're mixing contexts by choice rather than necessity.
The New Tab as a Context Signal
One small but useful addition: configure your new tab to reflect your current work mode.
I use Weather & Clock Dashboard as my default new tab — it shows the current weather and world clocks. This works as an ambient indicator that I'm in my "doing real work" mode: I see the weather, register the time, and open the tab I need.
For heavily compartmentalized workflows, you could configure different new tab pages for different Firefox profiles (if you go the full-profile-separation route rather than containers).
The Practical Test
You've successfully separated your browser contexts if:
- You can log into two different accounts on the same site simultaneously
- Your job search history doesn't appear in Google's suggestions when you type on your work account
- You can close the "Work" container entirely at 6pm and not see any work-related suggestions when browsing
If any of these fail, your contexts are still leaking. The containers + site assignment setup above should achieve all three.
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